Pure elastic fracture is always rare, so th at under the action of stress, a plastic zone(large or small), and interactions between crack and dislocations always exist at the crack tip.
纯弹性断裂总是极少的，因之在加载应力作用下，裂纹顶端总是存在着或大或小的塑性区，存在着裂纹与位错的交互作用。
By employing the shear lag theory, the basic equations of interfacial mechanics for the elastic zone and the plastic zone are established respectively.
利用界面应力剪滞理论，分别建立弹性区和塑性区的界面力学基本方程。
Whole weldment includes practically elastic deformation zone, compressive plastic deformation zone, tensile plastic deformation zone and melting pool.
整个焊接板由弹性变形区、压缩塑性变形区、拉伸塑性变形区和熔池组成。
Establish finite element model, and use elastic - plastic mechanics to discuss stress-stain state of elastic and plastic deformation in cutting zone.
根据正交切削特点建立了有限元模型，应用弹塑性力学讨论了切削变形区的弹、塑性阶段的应力、应变状态。
The exact solution of linear elastic fracture mechanics is suggested in this paper and the plastic zone of crack tip is calculated under the condition of strain-hardening of material.
本文从线弹性断裂力学的精确解出发，在考虑材料强化影响的情况下，计算出裂纹前缘的塑性区。
In this method, the elastic area and plastic zone can be distinguished and the different flow rules can be considered.
该方法可以考虑弹性区与塑性区的区别，并可以考虑不同的流动法则。
The expressions of elastic deforming volume and plastic deforming volume in the plastic zone were presented together with the average plastic volumetric strain.
给出了塑性区中平均体积应变及弹、塑性变形体积的计算公式和剪胀角的测试方法。
For the specific problems of tracing the interface between plastic and elastic zone, a weighted parameter mesh refinement criterion is presented.
针对跟踪塑性区交界面这一具体问题，采用了加权参数网格加密准则；
Within the whole anchorage system, the main stressed area is plastic-slipping zone; and the stresses born by elastic zone and debonding zone are relatively smaller.
在整个锚固体中，主要的受力部分是塑性滑移区，而弹性区和脱黏区的受力都较小。
Within the whole anchorage systems the main stressed area is plastic-slipping zone; and the stresses born by elastic zone and debonding zone are relatively smaller.
在整个锚固体中，主要的受力部分是塑性滑移区，而弹性区和脱黏区的受力都较小。
Displacement increases with time and tends to a final displacement value in the elastic-and plastic-zones. The displacement is inverse-ly proportional to the radius within the plastic zone.
弹性区、塑性区位移随时间的推移而不断增大，最后趋于一定值，且塑性区位移与半径成反比关系。
Displacement increases with time and tends to a final displacement value in the elastic-and plastic-zones. The displacement is inverse-ly proportional to the radius within the plastic zone.
弹性区、塑性区位移随时间的推移而不断增大，最后趋于一定值，且塑性区位移与半径成反比关系。
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