Materials Testing Systems

DYNAMIC

Multipurpose Dynamic Testing Systems

65

A B C D E F G H I J K L M N O P Q R S T

walter+bai Testing Machines

66

DYNAMIC

Materials Testing Systems

Multipurpose Dynamic Materials Testing Systems Series LFV 1 - 600 kN Designed to evaluate the mechanical properties in static, quasi-static and dynamic (fatigue) loading of materials, components, manufactured assemblies or finished goods. w+b offers the wide selection of different models from small table top units, floor-standing machines up to high force capacity systems to test the wide spectrum across material testing. The reliable servohydraulic frames combined with latest digital control system, software and extensive range of accessories turn this machines into flexible & most innovative systems.

walter+bai Testing Machines

w+b multipurpose dynamic testing system are available with actuator mounted in the base of the machine for materials testing of standard samples and fracture mechanical studies or

with actuator on top with integral T-slot platen providing the ultimate flexibility suitable to fix grips or fixtures, components, specimens, manufactures assemblies or finished goods.

Materials Testing Systems

DYNAMIC

Content - Section E

67

A B

Machine Type

Capacity Range

Page

Overview - Dynamic Multipurpose Testing Systems

68

Electromechanical Table-Top

72

1 - 2.5 kN

Servohydraulic Load Frames Series LFV 1 - 600 kN - Table-Top Low Force 1 - 25 kN - Compact Low Force 1 - 10 kN - Compact 10 - 63 kN - Actuator mounted on Crosshead 100 - 600 kN - Actuator integrated in the Base 63 - 600 kN Biaxial Testing Systems High Force Testing Systems

86 88

Applications Dynamic Fatigue Testing - Medical Engineering - Testing under Simulated Environmental Conditions - Dynamic Fatigue Testing - Biaxial Testing - High Force 1000 kN and higher - TMF - Thermo-Mechanical Fatigue Testing

90 90 92 93 94 95 96

74 76 78 80 82 84

C D E F G H I J K L M N O P Q R S T

walter+bai Testing Machines

68

DYNAMIC

Materials Testing Systems

Multipurpose Dynamic Testing Systems For static, quasi-static and dynamic tensile, compression or bending tests on materials, biomaterials, components and finished goods.

The Series LFV testing systems provide advanced solutions to static and cyclic dynamic fatigue testing applications in the range of Newtons up to 3000 kN or higher. These flexible, precise and compact systems are designed to meet the toughest challenges including uniaxial, multiaxial or axial-torsional applications. The machines are modular constructed and can be configured with a variety of grips and fixtures, extensometers, force transducers, environmental chambers, thermo-mechanical testing equipment, different software packages and other accessories to suits your specific testing needs and provide the ultimate flexibility.

walter+bai Testing Machines

The Series LFV family of testing systems are available for Examples of Specimens

Examples of Test Types

• • • • • • • • • • • •

•

Biomechanical Products Biomedical Implants Aluminium Composites Steel and Metals Super Alloys Components Wood and Paper Plastics Elastomers Soil Asphalt and Bituminous Materials

• • • • • • • • • •

Static Tension, Compression, Flexure and Shear Testing LCF - Low Cycle Fatigue Testing HCF - High Cycle Fatigue Testing Component Life Testing Fatigue Crack Growth Testing Fracture Toughness Testing Tensile Proof & Ultimate Strength Testing Creep and Visco Elastic Characteristics Modulus of Elasticity Poisson’s Ratio TMF - Thermo Mechanical Fatigue

Materials Testing Systems

DYNAMIC

Load Frames 1 – 600 kN

69

A B C D E F

Series LFV - E

1 - 2.5 kN

Electrodynamic Actuator: mounted on the upper crosshead

Series LFV - L

1 - 25 kN

Series LFV

1 - 10 kN

Actuator: mounted on the upper crosshead

Actuator: mounted on the upper crosshead

Hydraulic Supply: - integrated in base or - external free standing

Hydraulic Supply: - integrated in base or - external free standing

G H I J K L M N O P

Series LFV

10 - 63 kN

Series LFV

100 - 600 kN

Series LFV

63 - 600 kN

Actuator: mounted on the upper crosshead

Actuator: mounted on the upper crosshead

Actuator: integrated in the machine base

Hydraulic Supply: - integrated in base - external free standing

Hydraulic Supply: external free standing

Hydraulic Supply: external free standing

Q R S T

walter+bai Testing Machines

70

DYNAMIC

High Force Testing The servohydraulic high force testing machines are customized systems available in various configurations to accommodate a wide range of specimens, components or finished goods. The load frames are rigid 4-column units providing superior axial and lateral stiffness and precision aligned for advanced static or dynamic testing of high strength specimen and materials. A variety of high force grips and fixtures are available to complete the system.

Biaxial Testing Series LFV-T is specially equipped with rotary actuator to the end of the linear actuators for axial/torsional testing requirements. It is well suited for static and dynamic testing applications. The system is supplied with multi-channel controllers providing biaxial and therefore maximum performance and flexibility. It can be combined the full range of axial actuators with different rotary actuators having specific torsional torque capacity and torsional displacement.

walter+bai Testing Machines

Materials Testing Systems

Materials Testing Systems

DYNAMIC

71

A B C D E F G H I J K L M N O P Q R S T walter+bai Testing Machines

72

DYNAMIC

Materials Testing Systems

Electrodynamic Testing Systems Series LFV – E 1 - 2.5 kN State-of-the-art ServoElectric testing system to execute both static and dynamic testing on materials and components including biomaterials and biomedical / dental implants, plastics, textiles composites and automotive or electronic components. The Series LFV-E are fluid-free non-hydraulic systems currently available with force capacities up to 2.5 kN for fatigue and durability testing, tensile, compression, bend, peel or shear

strength testing as well as crack initiation. These table top systems with its SerovElectric drive mounted on upper crosshead represents a versatile and reliable fatigue rated

testing machines combined with latest drive technology. These machines are selected from testing professionals in quality control, R&D or Universities who desire a compact space saving, clean and quite low force testing unit that requires no environmental consideration and virtually no maintenance. The ServoElectric drive with its in-line digital displacement transducer provides noise-free stroke measurement or control. This drive features backlash-free motion with no fluid compressibility to compromise position accuracy. The system is available with integral T-slot platen providing high degree of flexibility or attachable (to the upper crosshead) closed frame often used from those who test e.g. dental implants in combination with saline bath. The upper crosshead can be lift or lowered through integrated electrical spindles to adjust the desired test space. Only unclamp the crosshead by twisting the lever clamps and pushing the up / down bottom without any tools. The spindles for lift/lower are protected against dust or mechanical damage. An emergency stop is available direct at the testing machine as well as on the remote control unit which can be used for precise of the actuator through digital hand-wheel.

Features • • • • • • • •

walter+bai Testing Machines

Flexible system for simple static to high frequency fatigue tests Clean and quite non-hydraulic drive with integral bearings Backlash-free motion with no fluid compressibility Integrated noise-free stroke transducer Virtually maintenance free system with lower life cycle cost Reduced moving parts Easy to operate Space saving compact design

Materials Testing Systems

DYNAMIC

Specifications

73

A

Accuracy

In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.

Control

Standard: Option:

Actuator

Mounted on upper crosshead.

Piston Stroke

Standard:

Crosshead Adjustment

Standard: ME mechanically locked and electrical adjustment. Option: M mechanically locked and manual adjustable.

Power Requirements

3 x 400 V, 50 Hz. Others upon request.

force and displacement closed loop controlled. with extensometer strain closed loop controlled.

B

±25 mm. Others upon request.

C D E

Type LFV - E

 

  



 

Max. Test Load Dynamic Max. Test Load Static Piston Stroke (Kh) Test Chamber Height (Ph) Distance betw. Columns (LW) Column Diameter (Sd) Width (B) Depth (T) Height (H) Weight Frame Frame Stiffness Working Height with Base (A) Total Dimensions with Base Total Weight Machine with Base

kN kN mm mm mm mm mm mm mm kg kN/mm mm mm kg

1

2.5

±1 ±1 ±25 740 440 80 730 500 1640 180 40 1100 1400 x 700 x 2750 340

±2.5 ±2.5 ±25 740 440 80 730 500 1640 220 40 1100 1400 x 700 x 2750 380

F G H I J K L M N O P Q R S T

walter+bai Testing Machines

74

DYNAMIC

Materials Testing Systems

Multipurpose Dynamic Servohydraulic Testing Systems Series LFV In rigid 2-column-constructions for superior axial and lateral stiffness Precision aligned for advanced testing according to relevant standards. Options for Testing Actuator • mounted on upper crosshead • integrated in the machine base

Options for Hydraulic Power Supply • integrated in the machine base • separate free standing power pack

Options for Crosshead Adjustment M ME HM HH

Lock: Mechanical Lock: Mechanical Lock: Mechanical Lock: Hydraulic

Lift: Manual Lift: Electrical Lift: Hydraulic Lift: Hydraulic

Features • Machine can be equipped with integral T-slot platen suitable to fix components, specimens or manufactured assemblies. • Compression platens or bending / folding devices may be fixed direct into wedge grips or interfaced with backlash-free washers. • Manifold is attached direct on actuator providing close-coupled servovalve and accumulators for improved performance. • Equal area actuator with hydrostatic bearings mounted on crosshead or integrated in the machine base. • Columns are chrome plated and hardened for easy cleaning and longest life. • Dynamic rated Precision flat load cell mounted on piston rod end • Integrated displacement transducer. • Including grip control system mounted directly at the machine.

Load Frame The Series LFV load frames are designed for precision Testing for a wide range of dynamic applications. They are rigid two- or four-column construction for superior axial and lateral stiffness and precision aligned ensure consistent loading is applied to specimen. If the actuator is mounted on upper crosshead the

walter+bai Testing Machines

machine having a integral T-slot platen suitable to fix grips or fixtures, components, specimens, manufactured assemblies or finished goods. The actuator is well suited for high piston speed at virtually service-free fatigue testing with manifold attached direct on actuator providing close-coupled servovalve and accumulators for improved performance with highest possible respond and reduced pressure fluctuations. To facilitate re-positioning, the upper crosshead of the Series LFV is adjustable and the columns are chrome plated for easy cleaning and longest life.

Actuator Part of the load frame of the Series LFV is a double ended, in equal area constructed actuator to generate equal axial force in tension and compression with hydrostatic bearings. The hydrostatic bearings provides extremely low fiction for the most accurate control and longest reliable lifetime at full ratings. A precision displacement transducer is integrated in the actuators. They are well suited for all types of testing (from static to dynamic) and are known for their excellent fatigue reliability, accuracy and repeatability. These actuators are the most versatile and by far the most popular solution for all types of the Series LFV

multipurpose testing machines.

Load Cell The dynamic testing systems are equipped with precision fatigue rated load cells for accurate force measurement and control. They are either mounted on actuators piston rod end as required for component, finished goods or biomedical test applications or otherwise on upper crosshead / alignment fixture.

Hydraulic Power Supply The dynamic performance of a particular Test System is governed by oil flow and pressure. The Series LFV with force capacities up to 50 kN and actuator on crosshead are available with in the machine base integrated power supply with up to 8 l/min oil flow. For larger oil flows the full range of external power packs with ratings up to 500 l/min or even higher is available to suit your requirements. The power packs includes beside of the hydraulic system also all electrical parts as indicators and system management buttons. As cooling systems air/oil cooler, water/oil cooler or alternative closed loop re-cooler system are available.

Materials Testing Systems

DYNAMIC

75

A B C D E F G H I J K L M N O P Q R S T walter+bai Testing Machines

76

DYNAMIC

Materials Testing Systems

Table-Top Dynamic Testing Systems Series LFV – L 1 - 25 kN Versatile and compact test systems configurable to meet the demands of modern testing laboratories, R & D centres, institutes and universities. The Series LFV - L tabletop systems are currently available in with force capacities ranging from 1 kN up to 25 kN. These fatigue rated systems represents the ideal solution to perform a large variety of static and dynamic materials tests. This series is well suited to perform static tension, compression, flexure and shear tests, LCF - low cycle fatigue testing, fatigue crack growth testing, fracture toughness testing, further typically applications includes testing of biomechanical products and implants and more. The load frame features rigid designed with high axial and lateral stiffness with high natural frequency. The upper crosshead is mechanically clamped and features automatic, motorized, positioning (lifting/lowering). Integrated in the upper crosshead is the fatigue rated actuator with co-axially mounted displacement transducer. The manifold with servo valve is mounted direct on the actuator for the highest possible response and most accurate test control. The close coupled accumulators minimize the hydraulic pressure fluctuations. The fatigue rated, low-profile, low mass designed precision load cell features high natural frequency and excellent long term stability. The LFV-L is available with the alignment fixture for the adjustment of load string alignment complying with ASTM E1012 or other standards. It is capable to perform alignment adjustments while the load train is fully preloaded. As accessory the alignment verification equipment with strain-gauged specimen, electronic and software is available. The system is supplied with the state-of-the-art machine base. As space saving system the solution with integrated hydraulic power pack up to 6 l/min. oil flow is available. Otherwise the machine is supplied with the low noise free standing hydraulic power pack Series PAC. To meet the full range of mechanical testing needs the LFV-L can be configured with a variety of grips and fixtures, extensometers, environmental chambers, different software packages and other accessories. The LFV-L is also available with axial/ torsional drive, upgrading your system from axial only to axial/ torsional performance. Standard ratings are 20, 50, 100 and 200 Nm. The torsional angle can be chosen to meet your specific testing needs.

walter+bai Testing Machines

Materials Testing Systems

DYNAMIC

Specifications

A

Accuracy

In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.

Control

Standard: Option:

Actuator

Mounted on upper crosshead.

Piston Stroke

Standard: Option:

Crosshead Adjustment

Standard: ME mechanically locked and electrical adjustment. Option: M mechanically locked and manual adjustable.

Hydraulic Power Pack

Standard: Option:

Power Requirements

3 x 400 V, 50 Hz. Others upon request.

force and displacement closed loop controlled. with extensometer strain closed loop controlled. ±50 mm ±75, ±100 or ±125 mm

Integrated in the base of the machine. Free standing power pack for higher oil flows.

Type LFV - L 

 







 

Max. Test Load Static Max. Test Load Dynamic Piston Stroke (Kh) Max. Distance betw. Adapters (Ph) Distance betw. Columns (LW) Column Diameter (Sd) Width (B) Depth (T) Height (H) Weight Frame Frame Stiffness Working Height with Base Total Dimensions with Base Weight Base without PAC Weight Base with PAC

77

kN kN mm mm mm mm mm mm mm kg kN/mm mm mm kg kg

1 / 2.5

6

±2.5 ±2 ±50 765 440 80 730 500 1850 150 110

±6 ±5 ±50 765 440 80 730 500 1850 150 110

140 350

B C D E

16

25

±10 ±16 ±8 ±12 ±50 ±50 765 765 440 440 80 80 730 730 500 500 1850 1850 150 150 110 110 1100 1400 x 790 x 2835 140 140 140 350 350 350

10

±25 ±20 ±50 765 440 80 730 500 1850 150 110

140 350

F G H I J K L M N O P Q R S T

walter+bai Testing Machines

78

DYNAMIC

Materials Testing Systems

Compact Low Force Dynamic Testing Systems Series LFV 1 – 10 kN Specially designed for fatigue testing of low strength materials such as biomedical implants and dental implants as well as plastics, aluminium, elastomers, components and finished goods. The upper crosshead features the innovative electrical height adjustment for quick and accurate positioning for test set-up. Actuator mounted on upper crosshead Crosshead Options Standard: ME Option: M Hydraulic Power Options Standard: integrated in base Option: separate free standing

This multipurpose dynamic testing system features the innovative electrical height adjustment for quick and accurate positioning of the upper crosshead for different sizes of specimens and different testing devices. Also a salt bath for testing of implants in salt solution up to 37° can be mounted into the machine. The bath can easily be moved in and out of the testing chamber.

Features • • • •

• • • • •

walter+bai Testing Machines

Rigid two-column construction Precision aligned Equal area actuator with hydrostatic bearings mounted on top of crosshead Manifold is attached direct on actuator providing close-coupled servovalve and accumulators for improved performance and reduced pressure fluctuations Upper crosshead adjustable to facilitate repositioning. Columns are chrome plated and hardened for easy cleaning and longest life Precision flat load cell mounted on piston rod end. Integrated displacement transducer Compression platens, bending or folding devices may be fixed directly into wedge grips or backlash-free washers.

Materials Testing Systems

DYNAMIC

Specifications

A

Accuracy

In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.

Control

Standard: Option:

Actuator

Mounted on upper crosshead.

Piston Stroke

Standard: Option:

Crosshead Adjustment

Standard: ME mechanically locked and electrical adjustment. Option: M mechanically locked and manual adjustable.

Hydraulic Power Pack

Standard: Option:

Power Requirements

3 x 400 V, 50 Hz. Others upon request.

force and displacement closed loop controlled. with extensometer strain closed loop controlled. ±25 mm ±50, ±75, ±100 or ±125 mm

Integrated in the base of the machine. Free standing power pack for higher oil flows.

Type LFV Max. Test Load Static Max. Test Load Dynamic Piston Stroke (Kh) Max. Distance betw. Adapters (Ph) Distance betw. Columns (LW) Column Diameter (Sd) Working Height (A) Width (B) Depth (T) Height (H) Weight (without Grips) Frame Stiffness

79

B C D E

1

2.5

6

10

kN kN mm mm mm mm

±1 ±1 ±25 800 440 50

±2.5 ±2 ±25 800 440 50

±6 ±5 ±25 800 440 50

±10 ±8 ±25 800 440 50

mm

800

800

800

800

mm mm mm kg kN/mm

650 900 2400 480 80

650 900 2400 480 80

650 900 2400 480 80

650 900 2400 480 80

F G H I J K L M N O P Q R S T

walter+bai Testing Machines

80

DYNAMIC

Materials Testing Systems

Compact Dynamic Testing Systems Series LFV 10 - 63 kN Specially designed for fatigue testing and research of biomedical implants, advanced materials, components, manufactured assemblies or finished goods. The crosshead features automatic adjustment with hydraulic unlocking and hydraulic moving through two long stroke actuators. Actuator mounted on upper crosshead Crosshead Options Standard: HH Option: M, HM Hydraulic Power Options Standard: integrated in base Option: separate free standing

These compact testing systems have the hydraulic power pack integrated in the base of the machine. These machines are self-contained, stand-alone units. The actuator is mounted on the upper crosshead. The machines are equipped with integral T-Slot platen suitable to fix components, specimens or manufactured assemblies. The standard model features the hydraulically moveable crosshead with passive clamping for an easy and accurate positioning of the upper crosshead.

Features • • • •

• • • •

walter+bai Testing Machines

Rigid two-column construction Precision aligned Equal area actuator with hydrostatic bearings mounted on top of crosshead Manifold is attached direct on actuator providing close-coupled servo valve and accumulators for improved performance and reduced pressure fluctuations. Upper crosshead hydraulically adjustable to facilitate repositioning. Columns are chrome plated and hardened for easy cleaning and longest life Precision flat load cell mounted on piston rod end. Integrated displacement transducer.

Materials Testing Systems

DYNAMIC

Specifications

A

Accuracy

In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.

Control

Standard: Option:

Actuator

Mounted on upper crosshead.

Piston Stroke

Standard: Option:

Crosshead Adjustment

Standard: HH hydraulic unlocking and hydraulic lift. Option: M mechanically locked and manual adjustable. HM mechanically locked and hydraulic lift.

Hydraulic Power Pack

Standard: Option:

Power Requirements

3 x 400 V, 50 Hz. Others upon request.

force and displacement closed loop controlled. with extensometer strain closed loop controlled. ±50 mm ±75, ±100 or ±125 mm

Width (B) Depth (T) Height (H) Weight (without Grips) Frame Stiffness

kN kN mm mm mm mm

B C

Integrated in the base of the machine. Free standing power pack for higher oil flows.

Type LFV Max. Test Load Static Max. Test Load Dynamic Piston Stroke (Kh) Max. Distance betw. Adapters (Ph) Distance betw. Columns (LW) Column Diameter (Sd) Working Height (A)

81

D E

10

16

25

40

63

±10 ±8 ±50 700 420 80

±16 ±12 ±50 700 420 80

±25 ±20 ±50 700 420 80

±40 ±32 ±50 700 420 80

±63 ±50 ±50 700 420 80

mm

880

880

880

880

880

mm mm mm kg kN/mm

750 900 2550 850 160

750 900 2550 850 160

750 900 2550 850 160

750 900 2550 850 160

750 900 2550 850 160

F G H I J K L M N O P Q R S T

walter+bai Testing Machines

82

DYNAMIC

Materials Testing Systems

Multipurpose Dynamic Testing Systems Series LFV 100 - 600 kN Versatile servohydraulic testing systems for higher capacity applicable for the fully spectrum of static and dynamic testing. The actuator is mounted on upper crosshead and the lower platen can be supplied with T-Slots for the ultimate flexibility. Actuator mounted on upper crosshead Crosshead Options Standard: HH Option: M, HM Hydraulic Power Options Standard: separate free standing

The cylinder of this Series LFV is mounted on the upper crosshead. The power pack is a freestanding unit and can be placed in a separate room. The machines can be equipped with integral T-slot platen suitable to fix components, specimens or manufactured assemblies. The machine can be configured with climatic chambers, high temperature furnaces, testing devices and other accessories to suit your specific testing needs.

Features •

•

• •

•

•

•

walter+bai Testing Machines

Hydraulic adjustable upper crosshead to facilitate quick, easy, and accurate positioning with passive clamping system and adjustment by two long stroke actuators. Equipped with integral T-slot platen suitable to fix components, specimens or manufactured assemblies. Chrome plated and hardened columns for easy cleaning and longest life. High quality actuator with hydrostatic bearings for the best static and dynamic performance in different specifications to depending on application. Actuator available with integrated displacement transducer and with antirotation system to prevent the natural tendency to rotate. Manifold is attached direct on actuator providing close-coupled servovalve and accumulators for improved performance and reduced pressure fluctuations Precision flat load cell mounted on piston rod end and displacement transducer.

Materials Testing Systems

DYNAMIC

Specifications





A

Accuracy

In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.

Control

Standard: Option:

Actuator

Mounted on upper crosshead.

Piston Stroke

Standard: Option:

Crosshead Adjustment

Standard: HH hydraulic unlocking and hydraulic lift. Option: M mechanically locked and manual adjustable. HM mechanically locked and hydraulic lift.

Hydraulic Power Pack

Standard:

Power Requirements

3 x 400 V, 50 Hz. Others upon request.

Type LFV 











Max. Test Load Static Max. Test Load Dynamic Piston Stroke (Kh) Max. Distance betw. Grips (Ph) Distance betw. Columns (LW) Column Diameter (Sd) Working Height (A) Width (B) Depth (T) Height (H) Weight (without Grips) Frame Stiffness

83

kN kN mm mm mm mm

force and displacement closed loop controlled. with extensometer strain closed loop controlled. ±50 mm ±75, ±100 or ±125 mm

B C D

Free standing power pack.

E

100

150

250

400

600

±100 ±80 ±50 1000 800 80

±150 ±120 ±50 1080 650 100

±250 ±200 ±50 1200 600 100

±400 ±320 ±50 1200 600 100

±600 ±500 ±50 1080 700 100

mm

750

800

550

550

900

mm mm mm kg kN/mm

1220 1000 3330 1800 300

1050 600 3600 1900 750

1050 800 3800 2900 1000

1050 800 3800 2900 1000

1190 750 4550 6500 1400

F G H I J K L M N O P Q R S T

walter+bai Testing Machines

84

DYNAMIC

Materials Testing Systems

Compact Multipurpose Dynamic Testing Systems Series LFV 63 - 600 kN Advanced high performance solution for Static, Fracture Toughness, LCF, Thermo Mechanical Fatigue (TMF), Fatigue Crack Growth and High Cycle Fatigue Testing. Servohydraulic Testing Machine in rigid construction with high axial and lateral stiffness, and precision aligned to satisfy a wide range of different test types. Actuator integrated in the base Crosshead Options Standard: HH Option: M, HM Hydraulic Power Options Standard: separate free standing

These machines with its high natural frequency have the actuator integrated in the base of the machine. The alignment fixture is fixed on upper crosshead and provides alignment adjustment of the load string complying with ASTM E1012 and other international standard as required for LCF and other tests. As accessories the alignment verification equipment with stain-gauged specimen (rod), electronic and software is available. This self-supporting unit is optimized for higher frequencies and requires no special foundation. The frame with its movable crosshead by two double acting actuators provides accurate positioning, large and easy accessible test space and allows the

integration of fracture toughness bending fixture, environmental or vacuum chamber or high temperature furnace.

Features • •

• • •

• •

•

•

walter+bai Testing Machines

High stiffness construction, precision aligned Movable upper crosshead for facilitate quick, easy, and accurate positioning by two long-stroke actuators Passive clamping system Inductive hardened, grounded and chromium plated column Double ended, equal area linear actuator with hydrostatic bearings for the best friction free static and dynamic performance, allows high side-loads and emergency running, integrated in machine’s base to shorten the force train. Integrated LVDT displacement transducer Servovalve with manifold mounted direct on the actuator for the highest possible response and most accurate test control Close coupled accumulators to minimize hydraulic pressure fluctuations and filter is mounted direct at the actuator High precision fatigue rated flat load cell for static and fatigue tests fixed on upper crosshead

Materials Testing Systems

DYNAMIC

Specifications

 













A

Accuracy

In accordance with ISO 7500-1 and EN 10002-2, Grade 0.5.

Control

Standard: Option:

Actuator

Integrated on upper crosshead.

Piston Stroke

Standard: Option:

Crosshead Adjustment

Standard: HH hydraulic unlocking and hydraulic lift. Option: M mechanically locked and manual adjustable. HM mechanically locked and hydraulic lift.

Hydraulic Power Pack

Standard:

Power Requirements

3 x 400 V, 50 Hz. Others upon request.

Type LFV Max. Test Load Static Max. Test Load Dynamic Piston Stroke (Kh) Max. Distance betw. Grips (Ph) Distance betw. Columns (LW) Column Diameter (Sd) Working Height (A) Width (B) Depth (T) Height (H) Weight (without Grips) Frame Stiffness

85

force and displacement closed loop controlled. with extensometer strain closed loop controlled. ±50 mm ±75, ±100 or ±125 mm

C D

Free standing power pack.

63 100* ±100 ±80 ±50 950 650 100

B

E

150

250

400

600

±150 ±120 ±50 950 650 100

±250 ±200 ±50 1150 650 100

±400 ±320 ±50 800 650 100

±600 ±500 ±50 800 700 120

kN kN mm mm mm mm

±63 ±50 ±50 800 550 80

mm

800

800

800

800

800

900

mm mm mm kg kN/mm

900 600 2500 980 250

1100 600 2800 1500 750

1100 600 2800 1500 750

1050 600 3125 1990 1000

1050 600 3125 1990 1000

1300 850 3300 2800 1300

* HM and M Versions same as load frame Type LFV 63

F G H I J K L M N O P Q R S T

walter+bai Testing Machines

86

DYNAMIC

Materials Testing Systems

Multipurpose Dynamic Biaxial Testing Systems Series LFV – T Specially designed for the experimental determination of mechanical properties of materials, components or products subject to combined axial and torsional loading. Available with customized torsional moment, angle and frequency range upgrading your system from axial only to axial / torsional performance. Since no standard testing method exist for multiaxial fatigue testing, it is important to choose a testing method suitable for a purpose of each testing. Due to that fact, beside to the standard axial loadings the torsional drive can be added to the full line of the multipurpose dynamic Testing Machines Series LFV with customized torsional moment, angle and frequency range to suit your specific

testing needs. The Series LFV-T of biaxial fatigue testing machines can torsion loading be coupled with tension-compression. Both torsion and tension-compression can be loaded independently in phase or out of phase. With related accessories the Series LFV-T of testing machines allows to perform a wide range of mixed-mode fatigue testing on rectangular

plate specimens, cruciform specimens, threepoint and four-point bending specimens with a crack, compact tension shear specimen, compact shear specimen, mode II crack growth specimen, circumferentially notched cylindrical specimens, tubular specimen containing a slit, solid cylindrical specimen containing a small hole or initial crack, tubular specimen for triaxial fatigue testing by applying internal or external pressure and a lot others.

Features •

• • •

•

• •

walter+bai Testing Machines

Double ended, equal area linear actuator with hydrostatic bearings for the best friction free static and dynamic performance, allows high side-loads and emergency running, integrated in the upper or lower crosshead to shorten the force train. With displacement transducer. Dynamic rated torsion drive closed coupled to the axial actuator High precision angle transducer. One-chamber-design, High stiffness construction, precision aligned, inductive hardened, grounded and chromium plated columns. Servovalve manifold platen mounted direct on the actuator for the highest possible response and most accurate test control. Close coupled accumulators to minimize hydraulic pressure fluctuations High precision fatigue rated biaxial load cell for static and fatigue tests fixed on the upper crosshead, lower tslot base platen or piston rod end for testing of components.

Materials Testing Systems

DYNAMIC

Specifications

87

A

Accuracy

In accordance with ISO 7500-1, Grade 0.5.

Closed Loop Control

Axial force, torque displacement, angle with extensometers also axial strain and torsional shear strain angle.

Axial-Torsional Grips

Series WGR - H Series SPG Series HCG

B C

Axial-Torsional Extensometers Series 3550

D E

Typical Axial-Torsional Configurations All others are also available. Type LFV

10-T... 25-T...

50-T... 100-T... 250-T... 630-T... 1000-T...

Axial Force

kN

10

25

50

100

250

630

1000

Torsional Capacity

Nm

20

50

50 100

200 500

1000 2000

4000 6000 8000 16000

4000 6000 8000 16000 32000

±50 ±150 ±360 ±1080

±50 ±150

±50 ±150

±50

±50

±50

±50

Working Rotation Angle

°

For models with working rotation angle ±50° additional ±10°hydraulic damping.

F G H I J K L M N O P Q R S T

walter+bai Testing Machines

88

DYNAMIC

Materials Testing Systems

Custom Designed High Force Dynamic Testing Systems w+b offers a wide range of configured high force testing systems for general materials testing including testing of metals, high strength alloys, fasteners, ropes, rail and other components or structures including civil engineering testing. These testing systems are rugged and reliable designed according to your testing needs in various configurations. Typically built in rigid 4-column-construction providing superior axial and lateral stiffness and precision aligned. Available are standard or custom models with

walter+bai Testing Machines

actuator in the base or crosshead. The horizontal and vertical daylights can chosen according to the requirements. Machines with actuator mounted on crosshead can accommodate extended t-slot tables to fix samples, components, manufactured assemblies

or finished goods. This systems can be supplied with hydraulic grips, 3 and 4 point bend fixtures, compression platen or tables and a range of other accessories including a range of extensometer.

Materials Testing Systems

DYNAMIC

89

A B C D E F G H I J K L M N O P Q R S T walter+bai Testing Machines

90

DYNAMIC

Materials Testing Systems

APPLICATIONS - Medical Engineering Fatigue Testing of Dental Implants according to ISO 14801 Designed for dynamic fatigue testing of endosseous dental Implants according to ISO 14801. Electrodynamic testing system type LFV - E 1 kN with integrated saline bath for the simulation of real conditions under temperatures of 37°C. With Testing fixture for dental implants and loading device.

Fatigue Testing of Hip Implant Prostheses according to ISO 7206 Servohydraulic dynamic testing system with testing devices for testing in quality control or research according to ISO 7206-1 up to -9. Machine base is equipped with T-slots for easy and accurate fixing of partial and total hip joint prostheses. All our actuators are free from wear due to hydrostatic bearings for best friction free static and dynamic performance.

Testing of Spinal Implant Constructs according to ASTM F1717 The dynamic loading is performed mostly at about 5 Hz frequency and up to 5 Mio. cycles. The test are performed in air but also in tempered bath (Ringers solution). The test can be done only in compression axial direction but also combined with torsional load. All our actuators are free from wear due to hydrostatic bearings for best friction free static and dynamic performance.

Testing of Lower Limp Prostheses according to ISO/DIS 10328 und 22675 The machine is equipped with special servo controlled tilting plate for the simulation of the compression force and walking motion on the tibia of lower limb prostheses. With 2-channel control of axial load and tilting plate in connection with PCS8000T2 and testing software DION7.

walter+bai Testing Machines

Materials Testing Systems

DYNAMIC

APPLICATIONS - Medical Engineering

A

Fatigue Testing of Prosthetics Implants

B

The machine is specially designed to perform static and dynamic tests on Prosthetics in accordance with ISO 10328 and ISO 22675: •

Prosthetics - Structural testing of lower-limb prostheses.

•

Prosthetics - Testing of anklefoot devices and foot units.

91

C D E

Fatigue Testing of Membranes of Cardiac Valves

F G

Especially designed for simultaneous displacement controlled testing of 6 samples with 6 load cells at a testing frequency up to 30 Hz and testing force of 20 N. Normally the test consist of up to 6006 load cycles during approximately 250 days. In connection with PCS8000 and DION7 for data acquisition and data storage of all test datas of the 6 samples with min./max. force and displacement / load cycles.

H I J K

Multi-Station Dental Implant Testing

L

This system is designed for high productive and efficient dental testing. The system consists of 8 load frames Type LFV 2 kN with saline bath. In the base integrated hydraulic power pack and heated water circulation system. The system is controlled by 8-channel control and measuring system Type PCS8000T8 and PC with materials testing software DION7.

M N O

High Speed Impact Tests up to 3 m/s

P

The dynamic testing machine Type LFV 50 kN is specially designed for static and dynamic high speed and impact tests on biomedical samples. For example testing of horse feet for the determination of forces on joints. The actuator and the load cell are specially designed for impact testing up to 3 m/s. The heavy lower base platen features integral T-slots suitable to fix components, specimens or manufactured assemblies. The machine base is vibration-free bedded.

Q R S T walter+bai Testing Machines

92

DYNAMIC

Materials Testing Systems

APPLICATIONS - Simulation of Environmental Conditions HT Fatigue Testing of Turbine Materials with Type LFV 50 kN

Testing and Research on Asphalt with Type LFV 50 kN

Dynamic rated hydraulic grips Type WGR-H 50 kN, high temperature furnace for temperatures up to 1250°C, dynamic rated through zero high temperature grips HTG 50 kN, different clevis grips Series CT for ambient and high temperature testing, several ambient and high temperature extensometers, and potential drop crack growth monitor system type DMC-2.

Conducting uniaxial tests of asphalt mixes to determine resilient modulus, Poisson’s ratio, indirect tensile creep and strength, dynamic modulus, tensile strength, phase angle, and flexure fatigue. Further triaxial asphalt, soil resilient modulus, dynamic foundations design, liquefaction, and conventional UU, CU, and CD soil tests are performed.

High Temperature Testing up to 1350°C in Type LFV 100 kN

Simulation of Environmental Conditions in Type LFV 100 kN

The testing system is configured with high temperature grips, furnace, extensometer and COD gauges for elevated temperature fatigue, fracture toughness (JIC and R-Curve) and tensile tests according to international standards. The high temperature grips are air-cooled for reliable and accurate test results. COD-gauges are equipped with ceramic rods.

Thermo Mechanical Fatigue (TMF) Testing in Type LFV 100 kN The dynamic testing system Type LFV 100 kN is specially designed for thermo mechanical fatigue (TMF) testing. The machine is equipped with high speed induction heating system, high temperature capacitive axial extensometer Type 3648 and hydraulic operated dynamic collet grips Series HCG. The extensometer features through its design a very low specimen contact force.

Simulation of Environmental Conditions in Type LFV 500 kN Dynamic testing machine in 4-column construction for superior stiffness. The machine is equipped with hydraulic grips Type SPG 500 and climatic chamber for temperatures range from -70°C up to +300°C, which can easily be moved in and out of the testing chamber.

walter+bai Testing Machines

The machine is equipped with climatic chamber for simulation of temperatures from -150°C up to 600°C and additional relative humidity 40% up to 90%, dynamic rated bend fixture Type BT 399 and COD gauge Type 3541 for fracture toughness tests according to relevant standards.

Multipurpose Testing with Type LFV 300 kN Specially designed for dynamic fatigue tests on various different sample under normal conditions and under simulated temperatures from - 70°C to + 40°C. With pull rods, clevis grips, dynamic extensometers Series EXA, COD-gauge Series 3541, fully automatic extensometer Type MFL 300, hydraulic grips Type WGR - H 300 kN, self-aligning tension grips Type SWG 300 kN.

Fatigue Testing of Airplane Components with Type LFV 300 kN The dynamic testing system is specially equipped with temperature / humidity chamber. For the execution of static and dynamic tests on components of the aviation industry under simulated environmental conditions with temperatures –150°C up to +600°C and additional relative humidity of 30% up to 95%.

Materials Testing Systems

DYNAMIC

APPLICATIONS - Dynamic Fatigue Testing Testing of Car Seats with Type LFV 2 kN Specially designed for static and dynamic testing of foam and flexible cellular polymeric materials for car seats. Integrated environmental test chamber to perform test at different air conditions. Test chamber allows to test complete car seats components. Standards: Determination of fatigue by constant-load pounding according to ISO 3385 or DIN 53574 etc. Determination of hardness by indentation technique according to ISO 2439 etc.

Testing of Automotive Components with Type LFV 20 kN The testing machine is specially equipped with T-slot base platen for universal easy fixing of various components of the automotive industry. Specially designed to determine the fatigue life operating strength of various automotive components.

Testing of Springs with Type LFV 50 kN Specially designed for static and dynamic testing of springs. The machine is equipped with special testing device for testing of 4 springs at one time. Additionally the machine can be equipped with load cells of 0.5 kN and 50 kN for very precise force measurements in the appropriate force ranges.

93

A

Testing of Components with Type LFV 200 kN The testing machine with extended horizontal and vertical test space is equipped with t-slots in the lower base platen for an easy fixing of components, assemblies and finished goods. The dynamic multipurpose testing system allows to perform static monotonic and dynamic fatigue tests for research and product quality assurance.

Standard Dynamic Testing System Type LFV 400 kN Standardized execution of our dynamic multipurpose testing system family for static monotonic and dynamic fatigue testing of high strength materials. The machine is equipped with hydraulic non-shift grips Series WGR - H 400 kN for precise clamping of the specimen.

Fatigue Testing of High Strength Steel Samples with Type LFV 500 kN The multipurpose dynamic testing system is equipped with dynamic rated hydraulic parallel grips with two-piston clamping Type SPG 500 kN and with extensometer Series EXA for accurate and repeatable test results. The machine is used for research of high strength steel.

B C D E F G H I J K L M N O P Q R S T

walter+bai Testing Machines

94

DYNAMIC

Materials Testing Systems

Applications Biaxial Dynamic Fatigue Testing Dynamic Biaxial Low Force Testing System Type LFV 10 kN T10 Nm This biaxial testing system is ideal for specimens such as medical devices and biomaterials, electronic components, polymers, wires and other components with smaller force rating. Various different test such as bone screw fatigue, dental implant wear or hip fatigue can be performed in this multipurpose materials testing system.

Dynamic Testing in Temperature Controlled Salt Solution Type LFV 20 kN - T50 Nm The testing system is specially designed for axial-loads up to 10 kN and torque-loads up to 50 Nm at a rotational angle of ±1080°. The testing machine is equipped with a saltwater bath with temperature regulation for biaxial fatigue testing of medical devices and implants such as dental, knee, bone or hip.

Dynamic Biaxial Testing of Soil Samples with Type LFV 50 kN – T200 Nm This biaxial testing machine is configured with an extra wide and extra high testing area. The testing system is specially designed for different biaxial fatigue tests with mutli-stress application on soil samples in connection with triaxial cells.

Biaxial Testing under Simulated Environmental Conditions with Type LFV 100 kN T2000 Nm The testing machine is equipped with compression stamp and axial-torsional load cell. Additionally the machine can be equipped with climatic chambers for tension-torsion and compression-torsion testing under simulated environmental conditions.

walter+bai Testing Machines

Tension- / CompressionTorsion Testing with Type LFV 250 kN - T1000 Nm The machine is specially desigend for axial-loads up to 250 kN and torqueloads up to 1000 Nm. It is an ideal test system for specimens such as automotive components, airplane components, rails, flat and hexagonal specimens a.s.o. The frame of the machine features a very high stiffness.

Materials Research with Type LFV 300 kN T2000 Nm The testing machine is equipped with t-slots platen and axial-torsional rated hydraulic grips Type WGR - H 300 kN and axial-torsional extensometer Type 3550. The testing system is used for defining material properties in a material research facility. The machine allows to simulate multi-axial stresses on the material.

High Force Dynamic Testing in Type LFV 600 kN – T20’000 Nm The biaxial fatigue testing system is specially designed for high force testing of various samples. The machine equipped with extended tslots base platen for easy specimen fixing. The testing system is used for research purposes on various materials at a materials laboratory of an university.

Biaxial Testing in High Stiffness Load Frame Type LFV 500 kN T10’000 Nm The machine is equipped with torsional rated two-piston hydraulic parallel grips Type SPG 500. The frame of the machine features additional strengthening for a very high axial lateral and torsional stiffness. Various other tests can be performed for universal use such as static monotonic compression or bending tests.

Materials Testing Systems

DYNAMIC

Applications High Force Dynamic Fatigue Testing

95

A

Fatigue Testing of Airplane Landing Gears in Type LFV 1000 kN

High Force Testing of Long Specimens with Type LFV 2000 kN

The dynamic testing system machine specially designed static and pseudostatic testing of assembled landing gears, dampers and actuators. The testing rid for compression and tension forces up to 1000 kN and testing of components up to 3.5 meters height. Large upper platen with threads to fix components and lower base platen with T-slots and threads.

Dynamic testing system with very large testing space for testing of samples up to 2 meters length. The testing machine is equipped with hydraulic parallel grips for clamping of flat and round specimens with different dimensions. The multipurpose testing system is used at a university for research and material development.

High Strength Concrete Rebar Fatigue Testing with Type LFV 1000 kN

General Material Testing Machine for Civil Engineering Type LFV 3000 kN

The testing machine in high stiffness four-column design is equipped with parallel wedge grips type SPG 1000 kN and fully automatic axial extensometer type MFL 300. Rebars with different diameters can be tested in the same grips through exchangeable gripping inserts.

Dynamic rated 3000 kN material testing system in very rigid 4-column construction supplied to government laboratory. The material testing machine is used for general materials testing including components and structures testing for civil engineering applications.

High Force Bending and Compression Fatigue Tests with Type LFV 1800 kN

Static and Dynamic Tests on Rail Components Type LFV 3000 kN

Machine equipped with cart for specimen loading with laboratory crane and with motorized moving in and out of the testing chamber. Large base platen with t-slots to fix components. High force bending rollers fixed on cart. Servo-actuator for high speed testing up to 1 m/sec.

The material testing machine is equipped with slid-in trolley. The samples can be placed onto the trolley with the laboratory crane and easily be entered into the testing chamber. The multipurpose dynamic testing system is used for static and dynamic testing of various components in the railway industry.

Dynamic Fatigue Compression Tests on Concrete Samples with Type LFV 3000 kN

Research on Various High Strength Materials with Type LFV 2000 kN

The testing system is specially designed for static an dynamic fatigue testing of high resistance concrete cubes and cylinder in a building material research institute. The machine is equipped with high force dynamic rated compression platens and other accessories for universal use.

Dynamic rated testing system with extended t-slot base platen. Machine supplied for general materials testing including large components for the railway industries. The machine is connected to a central laboratory hydraulic power pack Series PAR providing the oil supply for the LFV 2000 kN, LFV 600/T20000 and w+b 10 MN compression testing machine.

walter+bai Testing Machines

B C D E F G H I J K L M N O P Q R S T

96

DYNAMIC

Materials Testing Systems

APPLICATION Thermo-Mechanical Fatigue Testing - TMF TMF is a major cause of component failure in industrial machinery and structures exposed to temperature conditions and mechanical loads that change over time.

TMF affects a range of components, including train wheels and brakes, aircraft and ship engines, components used in gas turbines for power generation and compressors for gas and oil pipelines.

International Standards ASTM E2368-04 Standard Practice for Strain Controlled TMF-Testing •

This practice covers the determination of thermo mechanical fatigue (TMF) properties of materials under uniaxially loaded strain-controlled conditions. A “thermo mechanical” fatigue cycle is here defined as a condition where uniform temperature and strain fields over the specimen gage section are simultaneously varied and independently controlled. This practice is intended to address TMF testing performed in support of such activities as materials research and development, mechanical design, process and quality control, product performance, and failure analysis. While this practice is specific to strain-controlled testing, many sections will provide useful information for force-controlled or stresscontrolled TMF testing.

•

This practice allows for any maximum and minimum values of temperature and mechanical strain, and temperature-mechanical strain phasing, with the restriction being that such parameters remain cyclically constant throughout the duration of the test. No restrictions are placed on environmental factors such as pressure, humidity, environmental medium, and others, provided that they are controlled throughout the test, do not cause loss of or change in specimen dimensions in time, and are detailed in the data report.

•

The use of this practice is limited to specimens and does not cover testing of full-scale components, structures, or consumer products.

European Standard The International Organisation for Standardization (ISO) set up a working group to draft a TMF testing standard. Progress towards achieving a balanced document has been hampered because of the lack of pre-normative R&D. The aim of this study is to coordinate EU input to the ISO working group and to provide the technical basis that will enable researchers to define all test-related aspects of the draft standard.

walter+bai Testing Machines

Materials Testing Systems

DYNAMIC

97

A B C D E F G H I J K L M N O P Q R S T walter+bai Testing Machines

98

DYNAMIC

Materials Testing Systems

Typical System Configuration of a TMF - Testing System In a TMF test the stress and strain applied to a specimen are varied independently of the temperature. Two main types of tests are usually conducted •

•

In-Phase TMF The maximum value of temperature and the maximum value of mechanical strain occur at the same time . Out-of-Phase TMF The maximum value of temperature leads the maximum value of mechanical strain by a time value.

• • • • • • •

Force transducer Extensometer Water Cooled High Temperature Grips Heating Device (induction heating system, radiant or forced air heating) Temperature Measurement (Pyrometer or Thermo element) Digital Closed Loop Controller Series PCS8000 TMF-Testing Software DION7 (compensation for thermal strain)

Typical System Components

Optional Components

•

• •

•

High stiffness load frame Series LFV or Series LFMZ Alignment fixture

walter+bai Testing Machines

Alignment fixture Vacuum Chamber

Materials Testing Systems

DYNAMIC

99

A B HT- Extensometer

HCG- Grip

C

Thermocouples Induction coil

Mounting bracket for HT- Exensometer

D E

Adjusting device for induktion coil

External air- cooling for specimen

F G H I J K L

Upper crosshead

Alignment fixture

M

Load cell

N

Adjusting cylider of upper traverse

O

PC-Table

P Q R Lower Crosshead

S T

Hydraulic actuator

walter+bai Testing Machines

Materials Testing Systems

100

walter+bai Testing Machines