1) equivalent stress criteria
等效应力准则
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) equivalent rule
等效准则
1.
From frequency equation represented by flexibility matrix,according to equivalent rules of equal structure period,total base shear and top-point displacement,three-degrees equivalent model for regular high-rising isolated structure was deduced,and simplified computing formula for model parameters has been given after numerical analysis.
从用柔度矩阵表示的频率方程出发,根据上部结构周期、总基底剪力、顶点位移相等的等效准则,推导出可用于规则型高层隔震结构的的三自由度等效模型,并且通过数值模拟给出了模型参数的简化计算公式。
3) effect criterion
效力准则
4) B-W-N-B effective stress rule
B-W-N-B有效应力准则
1.
By using the B-W-N-B effective stress rule, the blast waves in the fully.
基于连续介质力学和不相融混合物理论,假定组分间无相对运动,采用B-W-N-B有效应力准则,在屈服面中引入孔隙影响因子,提出了一种多孔含水介质流固耦合的本构模型,并给出了孔隙的演化方程,对水饱和凝灰岩介质中的爆炸应力波传播作了数值模拟。
5) effective stress
等效应力
1.
The result of the effective strain and the effective stresss in cavity die circular section is caculated by simulating the cup drawing in different states cosidering strain, stress and thickness changes.
在模拟软件中,建立带压边圈的杯形件拉延模具模型,设杯形件材料为弹塑体本构模型,考虑厚度的应力、应变变化,通过数值模拟拉延成形,在不同压下位移时,求得凹模圆角处及附近的板料厚度截面等效应变、等效应力以及厚度变化值的分布;在此基础上,对压下位移不同阶段的凹模圆角成形区及附近区域的应力、应变值进行分析,其数值分别沿凹模圆角由外径向内径方向数值增大;另外得出在不同位置厚度发生变化曲线。
2.
Through FEM numerical simulation of flanging process which was carried out with ABAQUS software,the cognition that flanging process can be divided into 4 stages,the dynamic process of flanging,the method of computing for the prepared hole-diameter,the material thickness transformation of deformation area and the characteristic of effective stress distribution,etc.
利用有限元分析软件ABAQUS,对圆孔翻边成形过程进行了数值模拟,获得了翻边变形可以分为4个阶段的细观认识及其动态过程、翻边预加工小孔孔径的分析计算方法、变形区料厚变化情况以及等效应力分布与特点等。
3.
The effective strain and effective stress are introduced under the condition of axial symmetry.
进一步针对轴对称问题,引入等效应变和等效应力。
6) equivalent stress
等效应力
1.
Simulation on equivalent stress in soldered joints of QFP devices with different leads;
不同引线数QFP器件焊点等效应力的数值模拟
2.
Expression on equivalent stress and equivalent strain of wall rock state of tunnel;
巷道围岩状态的等效应力等效应变表述
3.
Simplified calculation on equivalent stress of vortex dedendum under the effect of uniform internal pressure;
受均匀内压作用涡旋齿根等效应力简化计算
补充资料：等效切应力
等效切应力
equivalent shear stress
dengxlaoq一eyingll等效切应力(equivalent Shear stress)一般应力状态下的各应力分量经适当组合而形成的与纯剪切应力等效的应力，也称统一切应力，切应力强度。其表达式为一六寸(一，2+(一，2+(一)2 等效切应力与偏应力张量二次不变量(见应力张量)的关系为二一了，万，与八面体切应力二(见八面体应力)仅差一常系数，与坐标轴变换无关。 (王占学)
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