Femoral Stem Fatigue Testing Machine
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Whats/App: +86 181 0160 0864
Web: gellowen.co.uk
The Femoral Stem Fatigue Testing Machine is a device used to evaluate the fatigue performance and durability of artificial femoral stems under repeated mechanical loading.
Standards
(1)YY/T 0809.4
(2)ISO 7206-4
These standards specify the test methods and performance requirements for fatigue testing of stemmed femoral components in partial and total hip replacements under defined conditions. Fatigue tests are conducted at a frequency of 1–30 Hz, load ratio R = 0.1. maximum load 2300 N, for 5 million cycles or until specimen failure.
Application
The Femoral Stem Fatigue Testing Machine is used to evaluate the mechanical durability and fatigue performance of femoral implants under cyclic loading. It simulates long-term physiological stresses experienced by hip prostheses in the human body, ensuring reliability, safety, and compliance with orthopedic implant standards. Typical applications include:
Orthopedic implant testing: Assess fatigue life of femoral stems in hip replacements.
Quality control: Verify consistency and mechanical performance of manufactured implants.
Research and development: Support design optimization and material selection for new hip prostheses.
Standards compliance: Conduct tests according to ISO 7206. ASTM F2077. and other orthopedic testing guidelines.
This machine ensures implants can withstand repeated physiological loads, reducing the risk of implant failure in patients.
Product Features
Next-generation fatigue testing system using large electromagnetic motor as the actuation core.
Direct-drive electromagnetic motor ensures stable operation and high repeatability for precise force and displacement control.
Built-in electromagnetic actuator with low friction and high repeatability, providing fast system response and high speed.
Capable of performing tension, compression, bending, shear, creep, and relaxation tests.
Meets modern material testing requirements for high precision, high frequency, stability, and durability.
Features oil-free, seal-free, maintenance-free operation, long service life, high integration, easy installation, and compact footprint.
Offers a variety of fixtures and accessories for different test setups.
Specifications
| Parameter | Specification |
|---|---|
| Maximum Peak Load | 8500 N |
| Dynamic Peak Load | 6000 N |
| Static Peak Load | 4200 N |
| Testing Machine Class | 0.5 |
| Load Measurement Range | 0.4%–100% F.S. |
| Load Measurement Accuracy | Better than ±0.2% of reading (within range) |
| Maximum Fatigue Loading Frequency | 100 Hz |
| Axial Stroke | 30 mm |
| Displacement Resolution | 0.1 μm |
| Test Space (between upper and lower fixtures) | 0–950 mm |
| Net Weight | ~900 kg |
| Dimensions (L×W×H) | ~1000 × 700 × 1800 mm |
| Optional Environmental Accessories | Water bath High temperature environment Low temperature environment Humidity-controlled environment |
| Applications | Fatigue, fracture, and static testing of metal, polymer, and composite materials Static/dynamic testing of surgical implants (trauma, joint, spine, dental) Polymer tensile fatigue testing Rubber crack propagation testing Other specialized material fatigue tests |
| Optional Fixtures and Tooling | Mechanical tension, compression, and bending fixtures Specialized femoral stem fixture Four-point bending fixtures Spinal rod/screw fixtures Tibial platform fixtures Vertebral body resection model compression/tension fixtures Dental implant fixtures |
Accessories
(1)Fixture Clamps: Secure femoral stems for precise load application.
(2)Loading Actuator: Applies controlled cyclic forces simulating physiological stresses.
(3)Data Acquisition System: Monitors displacement, load, and fatigue cycles in real time.
(4)Calibration Weights/Sensors: Ensure accurate load and measurement validation.
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