Fatigue testing machines are generally designed to identify the danger point or location of failure of a test piece of material that has been subjected to a series of stresses. This measures the durability or lifespan of a material or component, as well as the maximum load that it can withstand. After a sample is loaded into the fatigue tester, it is stressed until either a pre-determined number of cycles is reached or the material experiences failure. These tests can be performed with either constant amplitude or using servo hydraulic test machines.
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| Company | TA Instruments – a division of Waters Corporation | TA Instruments – a division of Waters Corporation | TA Instruments – a division of Waters Corporation |
| Item | DuraPulse™ Heart Valve Test Instrument | DuraPulse™ Stent/Graft Test Instrument | Planar Biaxial TestBench |
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| Catalog Number | DuraPulse™ Heart Valve Test Instrument | DuraPulse™ Stent/Graft Test Instrument | Planar Biaxial TestBench |
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| Description | Using proprietary ElectroForce controls and linear motor technology, the DuraPulse™ Heart Valve Test (HVT) instrument achieves smooth waveform fidelity and precise control for accelerated heart valve durability testing. Automatic PeakIQ™ control algorithms and independent test chambers ensure that Using proprietary ElectroForce controls and linear motor technology, the DuraPulse™ Heart Valve Test (HVT) instrument achieves smooth waveform fidelity and precise control for accelerated heart valve durability testing. Automatic PeakIQ™ control algorithms and independent test chambers ensure that established test conditions are maintained on each valve throughout the test. The DuraPulse HVT instrument provides testing to the ISO 5840 standard for heart valve durability assessment.
Key Features: - High frequency operation
- PeakIQ™ waveform control to prevent high pressure spikes on valve closing.
- Automatic controls (closed-loop feedback) to maintain test conditions throughout test
- Modular, independent control of each heart valve station
- Simplicity in transfer of heart valve device from durability test instrument to pulse duplicator
- 2, 4, or 6-station unit
- Reliable – 10 year warranty on linear motors
... Read More | The DuraPulse™ Stent/Graft test (SGT) instrument extends the performance and reliability that ElectroForce SGTs have become known for over the past 20 years. Still utilizing proprietary high-bandwidth, low-distortion ElectroForce actuator technology to provide best-in-class performance, the The DuraPulse™ Stent/Graft test (SGT) instrument extends the performance and reliability that ElectroForce SGTs have become known for over the past 20 years. Still utilizing proprietary high-bandwidth, low-distortion ElectroForce actuator technology to provide best-in-class performance, the DuraPulse SGT incorporates a modular manifold design that allows the user to easily change out manifold and tube sets to optimize sample throughput for various stented device sizes.
Key Benefits: - Achieve highest strain and frequency combinations with closed-loop, symmetric dual-sided pulse
- Single test instrument can be optimized for device geometry and sample number with interchangeable manifold sets – 12, 8, 6, and 4 (bifurcated) mock vessel options
- Accommodates wide range of device diameters – 2 mm to 50 mm
- Conveniently measure tube strain across all tubes with optical micrometer positioning slide and 360° manifold rotation, and a tube scanning function that holds command levels and allows the laser to be repositioned during testing
- Select from 3 ID/OD Strain Calculation modes including Zero Strain or Zero Stress Conditions (as defined by ISO 25539-2)
- Automate test pressure control with optional Pressure Control Accessory (PCA)
- Clearly identify system operation state with System Status Indicator (SSI) lights
- Instrument reliability for years of use supported by industry leading 10 year actuator warranty
- Meets or exceeds international testing standards such as ISO 25539-2 and ASTM F2477
... Read More | The ElectroForce Planar Biaxial TestBench instrument offers superior control and unparalleled performance in material and soft tissue characterization. Using this instrument, you can assess mechanical anisotropy and stress-strain relationships in samples that range from engineered devices, includingThe ElectroForce Planar Biaxial TestBench instrument offers superior control and unparalleled performance in material and soft tissue characterization. Using this instrument, you can assess mechanical anisotropy and stress-strain relationships in samples that range from engineered devices, including wearable sensors and wound repair meshes, to tissues such as skin, pericardium, and heart valve leaflets. This instrument can be configured with either two or four ElectroForce linear motors mounted on a horizontal baseplate and load cell options for each axis of loading.
Key Features: - Superior performance: choose parameters for your test protocol without compromising accuracy, including force, displacement, frequency, and wave shape (loading profile)
- Controllability: precisely characterize different materials by controlling specific experimental parameters, including load, displacement,and strain control (with theDigital Video Extensometer (DVE))
- Tailored for specific research needs: upgrade to a 4-motor configuration or add accessories such as hook or clamp tensile grips, heated saline bath, sterile BioDynamic chamber, or extended stroke and torsion actuators
- Integrated non-contact strain measurements: perform 2-D strain measurements in a physiologically-relevant environment with the DVE
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| Applications | Inquire | Inquire | Material testing |
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