理化检验-物理分册2025，Vol.61Issue(9)：36-41,6.DOI:10.11973/lhjy-wl250142
裂纹柔度法测量残余应力应用进展
Application progress of crack flexibility method for measuring residual stress
摘要
Abstract
Residual stress is a key factor affecting the service performance and processing performance of metal materials,and its accurate measurement has important theoretical significance and engineering value.The crack flexibility method monitors the change of strain response by introducing prefabricated cracks,and combines the theory of elastic mechanics and finite element analysis method to invert the distribution of residual stress field,which has the characteristics of high precision and wide applicability.The theoretical basis,test process and finite element calculation method of measuring residual stress by crack flexibility method are systematically expounded,and the key error factors affecting the measurement accuracy are analyzed in depth.The typical application cases of metal sheet and additive manufacturing parts are introduced,and the technical advantages of this method in metal rolling sheet and laser deposition components are discussed.The systematic analysis of the theoretical method and engineering application of crack flexibility method can provide an important reference for expanding the application of this method in the field of advanced manufacturing.关键词
裂纹柔度法/残余应力/检测技术/测试流程/有限元法Key words
crack flexibility method/residual stress/detection technology/test process/finite element method分类
矿业与冶金引用本文复制引用
陈锋,路来骁,孙杰,李绍志..裂纹柔度法测量残余应力应用进展[J].理化检验-物理分册,2025,61(9):36-41,6.基金项目
山东省自然科学基金资助项目(ZR2023ME153) （ZR2023ME153）
