1) stress invariant criteria
应力不变量准则
1.
The selected criteria cover: equivalent stress criteria,stress invariant criteria and critical-plane stress criteria in current investigations.
选取的准则涵盖目前研究的各个方面,包括等效应力准则、应力不变量准则和临界面应力准则;选用的数据包括合金钢、低碳钢、铝合金和铸铁等10种金属材料;加载方式包括比例加载和非比例加载;对比方式包括对同种材料不同准则之间的横向比较和同一准则对不同材料的纵向比较。
2) the stress rate criterion
应力变化率准则
1.
Based on the catastrophic characters of the whole strain energy in truss structural instability,the relationship between the whole strain energy and the stress rate in the link element was educed,and the stress rate criterion for judging the instability of truss structures was built up through analyzing the changing law of stress rate.
基于杆系结构发生动力失稳时的总应变能突变特征,推导总应变能同杆单元应力变化率之间的关系,并分析应力变化率的变化规律,建立了判定系结构动力失稳的应力变化率准则。
3) tensor invariant
应力不变量
1.
Based on the spherical tensor invariant and the deviator tensor invariant,a three-parameter generalized failure criteria was obtained based on the tension,compression and shear uniaxial strength value.
基于材料的第一应力不变量和应力偏张量第二应力不变量,给出了同时考虑拉伸、压缩、剪切强度参数影响下的三参数广义强度准则。
4) Invariant criterion
不变准则
5) Strain criteria
应变准则
6) stress tensor invariant
应力张量不变量
补充资料：变量与变量值
可变的数量标志和所有的统计指标称作变量。变量的数值表现称作
变量值，即标志值或指标值。变量与变量值不能误用。
变量值，即标志值或指标值。变量与变量值不能误用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条