摘要
依据强度理论与断裂判据相统一的观点，采用陈篪对遵守幂律本构关系的弹塑性材料在钝裂纹端部邻域平面应力应变场的近似解，对弱键理论和氢促进局部塑性变形理论进行修正，并将两者合并在一个统一的定量表述中。
Based on the concept of unification between strength theory and elastoplastic fracture criterion,and using the approximate solution for elastic-plastic plane stress-strain field in the vicinity of a blunt crack tip of power-law hardening materials,which was established by Chen Chi,a correction is made for both decohesion theory and hydrogen-facilitated local plastic deformation theory.The results from the two theories are found substancially identical.
出处
《重庆大学学报（自然科学版）》
CAS
CSCD
2000年第1期37-40,共4页
Journal of Chongqing University
基金
中国工程物理研究院科技基金!(93024)
关键词
氢脆
滞后开裂
断裂韧性
强度理论
金属材料
hydrogen embrittlement
delayed cracking
fracture toughness
strength theory
