Progressive Nature of Fatigue Damage of Glass Fiber Reinforced Plastics

Abstract

The progressive nature of fatigue damage due to cyclic loading on glass fiber reinforced plastics was studied. The residual strength of the specimens subjected to fluctuating tension with a given number of cycles was measured, and the number of cracks developed in the samples were counted by means of a microscope. From our test results, the progression process of fatigue damage in the composite materials can be divided into three stages.