摘要
本文根据材料的对称循环持久极限σ－１和静载强度极限σｂ，提出脉动循环持久极限σ０的估算公式．在此基础上，结合材料持久极限曲线，建立了塑性材料构件在应力循环特性ｒ＞０情况下对其进行疲劳或屈服强度校核的判据．
An approximate calculated formula for σ 0 of a material is provided by means of σ -1 and σ b of the material. Based on the study, the criterion for fatigue strength and yield strength for a member when the stress cyclic character r >0 is also obtained in this paper.
出处
《力学与实践》
CSCD
北大核心
1998年第3期23-25,共3页
Mechanics in Engineering
关键词
持久极限曲线
强度校核
屈服
判据
疲劳强度
the curve of persistent limit, checking about strength, criterion
