JMSE, Vol. 11, Pages 706: Research on the Residual Strength of Cracked Plate Considering Fatigue Crack Propagation under Cyclic Load

JMSE, Vol. 11, Pages 706: Research on the Residual Strength of Cracked Plate Considering Fatigue Crack Propagation under Cyclic Load

Journal of Marine Science and Engineering doi: 10.3390/jmse11040706

Authors: Qin Dong Geng Xu Yaoyu Hu Ziya Peng

Fatigue damage caused by cyclic loading is a major concern in engineering applications. Cracks propagated by cyclic loading can lead to catastrophic failure, which can have severe consequences in safety-critical systems. The main objective of the paper is to investigate the residual strength of cracked plate considering fatigue crack propagation under cyclic loading. In this study, a cracked plate model is proposed to study the difference of compressive and tensile residual strength with pre-crack and fatigue crack. The influence factors such as crack length, number of cycles, tensile/compressive cyclic loads, and out-of-plane deformation are considered in the residual strength study of cracked plate. The numerical results can gain insight into the effect of crack propagation on the structural residual strength, with the aim of providing guidance for evaluating the residual strength of cracked components.