Fracture surface consists of plastic yield deformation area and elastic deformation area.
断口主要分为塑性屈服变形区和弹性变形区两部分。
Deformation velocity has no obvious effect on the flow of material, initial yield stress and flow stress.
变形速度对材料流动、初始屈服应力、流动应力影响不明显。
Deformation of preloaded soft ground was calculated with the Yin's double yield surface model, the viscoelastic-viscoplastic model and the viscoelastic-viscoplastic damage model respectively.
结合堆载预压加固软基实例，分别采用殷宗泽双屈服面模型、粘弹-粘塑性和粘弹-粘塑性损伤模型进行有限元分析。
The effect of loading rate, test temperature and pre-plastic deformation on hydrogen induced apparent yield stress reduction have been investigated.
研究了变形速度，试验温度以及预先塑性变形程度对氢致表观屈服强度下降的影响。
According to the modern seismic conception, the critical zone of the RC member can be in the state of inelastic deformation after yield under strong motion.
现代抗震设计思想允许相应的钢筋混凝土结构构件的控制部位在强烈地震作用下进入屈服后非弹性变形状态。
Moreover, it is revealed that the deformation resistance in the thermal cycle process is related to the increase of its tensile stress and the decrease of yield strength.
研究进一步表明，材料变形的难易程度又与变温循环过程，热疲劳试样拉伸应力的增加和材料屈服强度的降低有关。
Using the theory of design on plate deformation, with attainment of high yield, we can find mathematics model and method on slab calculation.
利用中板变形规程的设计原理，以提高成材率为目标，得到了坯料计算的数学模型及基本方法。
It is important to plastic deformation analysis for we to understand correctly the geometrical form and properties of yield function of sintered powder materials.
正确认识粉末烧结材料屈服函数形状和性质，对于其塑性变形分析有重要意义。
The precision of Cam clay model is poor and the Sekiguchi Otha model gives excess deformation and a singularity point on the yield locus.
采用关口—太田各向异性模型，实测资料表明预测的变形偏大，且屈服面上有奇异点。
The deformation of the structure will mainly concentrates at the joints when structural damage occurs. The timber members remain elastic while the joint steel plates yield.
破坏时结构变形主要集中在节点上，节点钢板达到屈服强度，而木构件处于弹性工作状态；
Elastic deformation occurs at stress below the yield stress, the viscous flow appears after yield with thixotropy.
验证了在剪切应力低于屈服应力时，变形基本上是弹性的，而屈服后粘流过程显示了触变特性。
The collapsibility loess with lower bearing capacity is liable to yield the settlement deformation.
湿陷性黄土易产生沉降变形，且承载力低。
The basic properties of sintered powder materials in plastic deformation are explained. Some defects in present yield criteria of the materials are analysed.
阐述了粉末烧结材料塑性变形的基本性质，分析了粉末烧结材料现有屈服条件中存在的问题。
Usually yield function is introduced to describe the plastic deformation, however, a new damage function is proposed here to describe the additional deformation due to the damage of soil structure.
塑性变形常用屈服函数描述，损伤变形则可以引入一种类似的损伤函数加以描述。
All these results show that severe plastic deformation occurred on the grinding surface, the strain strengthening is the basic reason for the increase of the yield strength in grinding affected layer.
这些结果说明，磨削表面发生了严重的塑性形变。冷作塑性形变强化是磨削影响层的屈服强度得以提高的根本原因。
In this paper, the deformation of the axisymmetrical tunnel in soft rocks is studied by using the Mohr-Coulomb yield criterion and non-associative plastic flow rule.
本文采用莫尔-库仑屈服准则和非关联塑性流动法则分析了轴对称软岩巷道的变形规律。
The lumpy amorphous Pd-Ni-Si-P alloy has certain plastic deformation capacity and high yield strength, and possesses excellent application foreground in different fields.
本发明所提出的非晶合金具有较高的屈服强度、一定的塑性变形能力，在众多领域具有良好的应用前景。
The calculation of micro-yield stress in surface layer and the stress-strain curves of surface layer deformation were studied.
本文对表面微观屈服应力的测量与计算方法及表面变形的应力应变曲线进行了分析研究。
Ultimate load designs according to the yield-line or strip methods do not guarantee safety against cracking or excessive deformation.
接屈服线法或条带法的极限荷载设计不能完全保证抗裂或防止过度变形。
Generally, it is difficult to spin titanium alloy at room temperature, because of its high deformation resistance and yield to tensile ratio.
钛合金的变形抗力和屈强比较大，其壳体室温变薄旋压成形有一定困难。
Yield function is introduced to describe the plastic deformation and a new damage function is proposed to describe the additional deformation due to the damage of soil structure.
塑性变形常用屈服函数描述，损伤变形则引入一种类似的损伤函数加以描述。
The finite element analysis of the wheel rail contact shows that the maximum stress under the subsurface exceeds first yield strength, which leads to plastic deformation.
在对轮-轨系统进行有限元分析的基础上，研究了轨道的受力情况和摩擦系数对应力分布的影响，讨论了轨道的弹塑变形和安定极限。
The results show the tensile strength, yield strength, hardness and elongation increased obviously due to the decreasing of the grain size of pure Cu after severe plastic deformation.
研究结果表明：经过大变形后，由于纯铜的晶粒得以细化，抗拉强度、屈服强度、硬度和断裂延伸率都显著增加。
When the tensile load is not perpendicular to the twin boundary, the yield stress decreases and the deformation is mainly detwinning.
拉伸载荷与孪晶界不垂直时，屈服应力降低，变形方式则以去孪晶为主。
The volume dilatation and the non-linear deformation of rock originated, when the differential stress equals to the yield point of rock.
当差应力达到岩石的屈服应力时，扩容和非线性应变开始。此外，随应力水平的增加，扩容和非线性变形呈幂函数形式增加。
In this paper the formula of work of plastic deformation and the 3-dimensions figure of Twin shear stress yield criterion in the plane stress condition are derived.
文章导出了双剪应力屈服准则的塑性功串表达式及在平面应力条件下的三维图形；
In this paper the formula of work of plastic deformation and the 3-dimensions figure of Twin shear stress yield criterion in the plane stress condition are derived.
文章导出了双剪应力屈服准则的塑性功串表达式及在平面应力条件下的三维图形；
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