This standard specifies equipment samples, test procedures, processing of test results and test reports for the axial constant amplitude low cycle fatigue test of composite materials.

This standard is applicable to the low-sweeping ring fatigue test of Jinrun materials, such as circular and funnel-shaped specimens, which are most subject to axial constant-amplitude stress or deformation, excluding the test of gold-sized parts and structural parts. It is suitable for temperature and strain rate that are smaller than or equivalent to time-dependent inelastic strain and time-independent inelastic strain. It is allowed to carry out the test under environmental factors such as temperature, pressure, display degree, medium, etc., but the whole factor should be kept constant during the whole test process.

Note 1 This standard can be used as a guide for material development, mechanical design, technology and pelletizing, product sex cell determination and tip education analysis during any cycle test.