摘要
现有含缺陷结构失效评定规范对倾斜裂纹的处理基于投影法 ,比较粗糙。本文将美国电力研究院 (EPRI)对材料按Ramberg -Osgood规律硬化的含缺陷结构失效评定双判据法的理论阐述推广到一般的硬化材料 ;又根据Ⅰ—Ⅱ复合型裂纹韧性断裂的研究成果 ,并吸收英国中央电力局(CEGB)R6—Rev3方法的特点 ,提出含倾斜裂纹结构的失效评定图。
The treatment of existing assessment code on the inclined defects of the defective structure is based on projection method,which is relatively coarse.This paper extends the theoretical exposition of doubel-criterion method for failure assessment of defective structure hardened according to Ramberg-Osgood law by the Electric Power Research Institute(USA)to conventional hardened materials;and proposes the failure assessment diagrams of the structure with inclined cracks according to the research achievements in ductile fracture ofⅠ-Ⅱ composite cracks and by absorbing the characteristics of R6-Rev3 method of CEGB(UK).
出处
《压力容器》
2000年第5期1-4,22,共5页
Pressure Vessel Technology
基金
国家机械工业局机械工业科学技术发展计划项目! ( 982 30 90 2 )
