Metallic Bone Plates Flexural Fatigue Testing, Static bending test ASTM F382, bending circle fatigue test

Metal bone plate is an orthopedic implant made of titanium alloy, stainless steel and other materials, mainly used for internal fixation treatment of fractures in limbs, clavicles and other parts. Its structure includes locking plates, screws, and other components. It is designed in over 70 sub models such as straight and angled according to anatomical requirements, and uses non anodized or anodized surface treatment techniques. Some products have undergone irradiation sterilization treatment and should be stored away from light and moisture, and secondary use is prohibited.

ASTM F382 is a standard specification and testing method for metal bone plates. It provides a comprehensive framework for classifying, defining, and measuring the geometric and performance characteristics of these bone plates. This standard is crucial for establishing consistent methods and includes guidelines on material specifications, labeling, processing requirements, and mechanical performance testing.

ASTM F382: 

1, Test Method Single Circle Static Bend Test This method measures the bending stiffness, structural stiffness, and bending strength of metal bone plates. It helps to determine the intrinsic structural characteristics of the board. The testing setup involves placing the bone plate sample in a fixture and applying gradually increasing loads until a specific displacement measurement value is recorded.

The testing procedure is as follows:

Sample preparation: Prepare samples according to standard guidelines.  

Alignment: Place the bone plate into the testing fixture so that its long axis is perpendicular to the axis of the load roller.

Apply load: Apply incremental load and record the displacement curve between the load and the load point.  

2, Bending fatigue testing is a method used to evaluate the fatigue life of bone plates under cyclic loading conditions. It evaluates the performance of the board under repeated bending stress.

The procedure for fatigue testing is as follows:

Load determination: Determine the load level for fatigue testing.

Sample alignment: Place the bone plate into the testing fixture to ensure correct alignment and contact with the drum.

Cyclic loading: Apply cyclic loading at a certain frequency (standard 5 Hz) until the sample fractures or the number of cycles reaches the limit. Data recording: Record the maximum torque, number of cycles, failure mode, and failure location at the end of the test.

UnitedTest ASTM F382 Metallic Bone Plates bending fatigue testing machine/dynamic testing machine can used to execute the above mentioned test.