2) yield criterion
屈服准则
1.
Application of twin τ~2 shear yield criterion in plate round hole issue;
双τ~2屈服准则在受压平板圆孔问题中的应用
2.
Applying micromechanical method to characterize the yield criterion for polysynthetically twinning crystals of TiAl;
以细观力学法确定γ-TiAl基PST晶体宏观屈服准则
3.
Two-parameter parabolic-type yield criterion based on Mohr strength theory;
基于Mohr强度理论的双参数抛物线型屈服准则
3) yield criteria
屈服准则
1.
Updated 5-parameters Barlat-Lian yield criteria;
改进的5参数Barlat-Lian屈服准则
2.
Effects of anisotropic yield criteria on the prediction of wrinkle during the deep-drawing forming of aluminum alloy sheet;
各向异性屈服准则对铝合金板深冲起皱预测的影响
3.
Barlat'91 yield criteria account for six stress components is adopted to describe the material constitutive behaviors of aluminum alloys.
采用Barlat' 91材料屈服准则准确描述铝合金板料各向异性,通过与其它屈服准则的比较发现,Barlat 91屈服准则能反映在单轴拉伸和等双轴拉伸条件附近屈服面的小曲率半径。
4) yield rule
屈服准则
1.
The authors established a new onedimensional elastic viscoplastic consolidation model based on several theoretic concepts, such as compressibility characteristics of soil, reference state and yield rule of elastic viscoplastic soils, etc.
建模时考虑固结压缩的分段性,引入参考应力状态概念、弹黏塑性屈服准则以及一些其它观点,同时结合殷建华[3]等提出有效应力、应变和蠕变速率的唯一性原则,建立了一个原状土的一维弹黏塑性固结模型。
5) yield criterions
屈服准则
1.
This paper discussed the necessity and concrete implementary method of the whole stability,analized the sluice foundation with elasticplastic FEM,made general exposition for yield criterions,safe coefficient, foundation load and solution of nonlinear equation group.
本文论述了用弹塑性有限元法进行水闸地基整体稳定性分析的必要性及具体实施方法,对屈服准则、安全系数、地基荷载及非线性方程组求解做了一般论述。
2.
All round analyses were made for the influence on computation precision caused by different soil yield criterions, FEM accuracy, slope height, cohesion and friction angle.
本文较为全面地分析了土体屈服准则的种类、有限元法自身计算精度以及H (坡高 )、 β (坡角 )、C (粘聚力 )、Φ (摩擦角 )对折减系数法计算精度的影响 ,并给出了提高计算精度的具体措施。
3.
This paper presented a comparison of several yield criterions in common use and deduced the substitutive relationship of them.
安全系数的大小与所采用的屈服准则有关 ,本文对几种常用的屈服准则进行了比较 ,导出了各种准则互相代换的关系 ,并采用莫尔 -库仑等面积圆屈服准则代替莫尔 -库仑准则 ,算例表明由此求得的边坡稳定安全系数与传统方法的计算结果十分接
6) yielding criterion
屈服准则
1.
For the springback problem of sheet metal stretch-bending, a mathematical model was proposed based on Hill’s yielding criterion, exponential hardening and plane strain assumption.
基于平面应变假设,采用服从Hill平方屈服准则和指数强化材料模型,建立了板料拉弯成形回弹量预测的理论模型。
2.
For the springback problems of wide anisotropic metal sheets after large radius pure bending, a mathematical model is proposed based on Hill’s yielding criterion.
针对各向异性板料的大曲率弯曲回弹问题,建立了服从Hill屈服准则和指数强化模型的平面应变纯弯曲的回弹理论模型。
3.
A stress-strain constitutive equation of non-linear combined hardening rule was proposed based on non-linear kinematic hardening theory of Lemaitre and Chaboche,isotropic hardening and Mises yielding criterion.
基于Lemaitre and Chaboche非线性随动强化理论、等向强化和Mises屈服准则,建立了复杂加载模式下非线性混合强化材料模型的弹塑性应力应变本构关系,并采用Backward Euler切向预测径向返回算法计算应力应变增量。
补充资料：复合材料破坏准则
复合材料破坏准则
failure criterion of composite materials
复合材料破坏准则failure eriterion。f Compo-site materials判断复合材料在复杂应力状态下是否破坏的理论。又称复合材料失效准则、复合材料强度理论。二向或三向复杂应力状态可能有无穷多个应力组合，不可能由实验逐个确定各应力状态下的材料破坏条件。因此，需要提出破坏准则的假说，从有限个实验结果中给出任一复杂应力状态下材料是否破坏的判断。 常用的复合材料破坏准则是均质正交各向异性材料破坏准则。是从相应的均质各向同性材料强度理论推广而来。计有40多种。这类准则不涉及破坏机理，不作理论解释，只是为了拟合实验结果，故又称作唯象或现象破坏准则。 由于复合材料是细观非均质材料，本质上是结构物，它的破坏机理和形式复杂多样。唯象破坏准则的单一准则方程根很难对各类复合材料、各种复杂应力状态下的破坏形式都能满足。70年代以来，人们进一步探索建立复合材料细观力学破坏准则。它以组分材料性能作基础，并与破坏形式相关，对不同的复合材料、不同的破坏形式给出不同的破坏准则方程。这类准则有比较清楚的物理意义，更符合实际情况，对复合材料的材料设计有更直接的指导意义。 (张汝光)
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