threshold stress meaning in English

极限应力
界限应力
阈限应力

Method for determination of threshold stress intensity factors and fatigue crack growth rates in metallic materials
金属材料的阈限应力强度因子和疲劳裂纹增长率的测定方法
Standard test method for determining a threshold stress intensity factor for environment - assisted cracking of metallic materials
测定金属材料环境致裂的界限应力强度因子的标准试验方法
Determination method of the damage threshold stress and damage threshold strain is given , six kinds of damage variables ( which are across isotropy effectual elastic modulus damage variable , simple effectual elastic modulus damage variable , density damage variable , volume damage variable , volume density damage variable and area density damage variable ) are defined , evolution curves and evolution equations of harden yield damage are obtained
提出了损伤应力和应变门槛值的确定方法，并定义了六种损伤变量(即横观各向同性有效弹性模量损伤变量，简单有效弹性模量损伤变量，密度损伤变量，体积损伤变量，体积密度损伤变量和面积密度损伤变量) ，在此基础上得出了硬化屈服损伤过程中的损伤演化曲线和演化方程。