摘要
通过对 4种不同缺口形式的 2 .2 5Cr1Mo钢材料圆柱形试件的高温低周疲劳行为的研究 ,用当量应变范围准则、当量塑性应变能准则和当量总应变能准则评价多维应力状态下的高温低周疲劳寿命。可见 :用当量准则评价高温低周疲劳寿命是有实验和理论依据的 。
By the investigation of the high temperature low cycle fatigue behavior of the 4 kinds of notched cylindrical specimens made of 2.25Cr1Mo steel, the high temperature low cycle fatigue life was evaluated by the criterions of equivalent strain range, equivalent plastic strain energy and equivalent gross energy. So it has its experimental and theoretical foundation with equivalent criterion evaluating high temperature low cycle fatigue life, but further investigation is still needed.
出处
《压力容器》
2002年第6期4-8,共5页
Pressure Vessel Technology
关键词
高温低周疲劳
当量应变范围
当量性应变能
当量总应变能
疲劳寿命
多维应力状态
high temperature low cycle fatigue
equivalent strain range
equivalent plastic strain energy
energy equivalent gross strain energy
fatigue life
multiaxial stress state
