Bone Cement Flexural Fatigue Testing Machine
Category：Other
Introduction
The Bone Cement Flexural Fatigue Testing Machine is a device used to evaluate the flexural fatigue performance of bone cement materials under repeated bending loads.
Standards
(1)YY/T 1429
(2)ISO 16402
These standards specify the testing procedures for evaluating the fatigue properties of polymethyl methacrylate (PMMA)-based bone cement. Rectangular specimens are tested under quasi-static or cyclic loading conditions using a four-point bending method to determine the flexural strength or fatigue life of the specimen.
The system provides professional testing fixtures (including water bath environments) and precise, effective standard operating procedures (SOPs) to support comprehensive mechanical performance analysis of bone cement.
Application
The Bone Cement Flexural Fatigue Testing Machine is used to evaluate the mechanical durability and flexural fatigue performance of bone cement under repeated bending loads. It simulates long-term stresses that bone cement experiences in orthopedic implants, ensuring safety and reliability. Typical applications include:
Orthopedic material testing: Assess fatigue life of bone cement used in joint replacements.
Quality control: Verify consistency and mechanical performance of manufactured bone cement batches.
Research and development: Support optimization of bone cement formulations and mechanical properties.
Standards compliance: Conduct tests according to ISO 5833. ASTM F2118. and other orthopedic material testing guidelines.
This machine ensures bone cement can withstand repeated physiological flexural loads, reducing the risk of implant loosening or failure.
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, spinal, 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)Specimen Holders/Fixtures: Secure bone cement samples for consistent flexural loading.
(2)Actuator/Loading System: Applies controlled cyclic bending forces.
(3)Data Acquisition System: Monitors load, deflection, and number of fatigue cycles.
(4)Calibration Tools: Ensure accurate force and displacement measurements.
Maintenance Information
Daily Cleaning: Wipe fixtures, sensors, and loading areas to remove residue.
Calibration: Periodically calibrate load cells, displacement sensors, and actuators.
Inspection: Check for wear or damage on mechanical components and connections.
Lubrication & Storage: Lubricate moving parts if necessary and store in a clean, dry environment.
FAQ
1. What is the purpose of this machine?
It evaluates the flexural fatigue performance of bone cement under repeated bending loads to ensure reliability in orthopedic applications.
2. What types of specimens can be tested?
Standardized bone cement samples used in joint replacements, prepared according to ISO 5833 or ASTM F2118.
3. How does the machine simulate real-world conditions?
It applies cyclic bending forces that mimic long-term physiological stresses experienced by bone cement in orthopedic implants.
4. Which standards does it comply with?
Supports ISO 5833. ASTM F2118. and other international standards for orthopedic material fatigue testing.
5. How is maintenance performed?
Regularly clean fixtures and sensors, calibrate load cells and actuators, inspect mechanical parts for wear, and store the machine in a dry, controlled environment.
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