ASTM F382 Flexural Fatigue Testing Machine Metallic Bone Plates, bending test

ASTM F382: The standard specifies a test method for the bending fatigue performance of metal bone plates, aiming to provide a bending fatigue performance evaluation method for bone plates of different designs. The fatigue testing of metal bone plates is conducted at a frequency of 5Hz, with R=0.1, and a cycle of 1 million times or until sample failure. 

UnitedTest's electro dynamic fatigue testing equipment features sinusoidal load control that is precise, and can provide you with a comprehensive testing tool (various sizes, contour roller shafts, etc.) to meet the testing conditions for samples of different sizes, along with accurate and effective testing protocols (SOPs) to assist in the mechanical performance analysis of metal bone plates or in the comparison of different bone plate designs.

Product features:

A new generation fatigue testing system with a large electromagnetic motor as the actuation core;

The direct drive electromagnetic motor operates stably with high repeatability, ensuring precise control of force and displacement;

The built-in electromagnetic actuator has the characteristics of low friction, high repeatability, high system response, and high speed;

◆ Can perform tests such as tensile, compressive, bending, shear, creep, relaxation, etc;

◆ Meet the strict requirements of modern material mechanics testing for high precision, high frequency, high stability, and durability;

◆ It has the characteristics of oil-free, sealless, maintenance free, long service life, high integration, easy installation, and small footprint;

Various fixtures and accessories are available for selection.

Main specification: 

Max. dynamic load±10KN  Accuracy ±1%

Max. static load ±10kN

Dynamic fluctuation Less than ±1%FS

Actuator max. stroke ±50mm, accuracy ±0.5%FS

Amplitude at Max. frequency ±1mm

Max. Frequency 0.1HZ~15Hz

Max. line velocity 150mm/s

ASTM F382-17 Standard Specification and Test Method for Metallic Bone Plates

1.4.1 Standard Test Method for Single Cycle Bend Testing of Metallic Bone Plates—Annex A1, and

1.4.2 Standard Test Method for Determining the Bending Fatigue Properties Of Metallic Bone Plates—Annex A2.

The procedure for fatigue testing is the following:

Load Determination: Determine the load levels for fatigue testing.

Sample Alignment: Place the bone plate in the test fixture, ensuring proper alignment and contact with the rollers.

Cyclic Loading: Apply cyclic loads at a frequency (standard is 5 Hz) until the specimen breaks or the cycle count reaches the runout limit.

Data Recording: Record the maximum moment, cycle count at test termination, failure mode, and failure location.