Review of Fatigue Life

Environmental changes and normal use consumption will lead to fatigue damage of products, such as fracture, delamination and other defects. When the fatigue life reaches the lowest value, the product will lose its working capacity, and in serious cases, it will lead to system failure. According to different research background and different experimental contents, experts and scholars on fatigue life research methods are different as well. This paper summarizes the research status of fatigue life, introduces the concept and mechanism of fatigue life, discusses the experimental design method of fatigue life, and studies the evaluation and treatment method of fatigue life by referring to the specific test scheme. Based on the summary of the basic theories and analysis methods of fatigue life currently involved in this paper, the health status of products can be evaluated and targeted measures can be taken to prevent the occurrence of problems.