获得了应变集中系数和弹塑性边界区随载荷变化的规律；
The variation of the strain concentration factors and the yield boundaries with loading levels were determined.
该研究表明，弹塑性边界单元法用来分析板带轧制是满意的。
The research shows that the elastoplastic BEM is satisfactory for analyzing flat rolling of plate and strip.
本文在计算板带轧制中的参数时应用了初始应力的弹塑性边界单元方法。
In the paper, the elastoplastic boundary element method (BEM) of the initial strain is worked at calculating parameters of flat rolling of plate and strip.
本文用奇异面理论研究了弹塑性平面波传播中弹塑性边界间断的几个性质。
Several properties of the weak discontinuity across an elastic-plastic boundary in plane wave propagation have been investigated by using the theory of singular surface.
给出了利用隐含对称条件的二维弹塑性边界元分析公式，并应用于弹塑性接触问题分析。
In this paper, boundary integral equation for elastoplastic problem with implicit symmetry conditions is developed and applied to elastoplastic contact problems analysis.
弹塑性边界元法中初应力(或初应变)奇异体积分的计算一直是一个较为困难、但又是非常重要的问题。
The calculation of the initial stress (or initial strain) singular integrals in elastoplastic boundary element method is a difficult, but an important problem.
在此基础上，本文首次采用弹-粘塑性边界元法并结合锚喷支护考虑了隧洞掘进面时空效应作用问题，从而拓展了边界单元法的工程应用。
Based on the above work a space-time effect on the excavation face of tunnel with the function of bolting support is considered, thus the engineering application of BEM is developed.
以二维弹性力学自然边界积分方程法为基础建立了二维弹塑性问题的自然边界积分方程。
Based on the natural boundary integral equation for two dimensional elasticity, a corresponding elastoplastic formulation is presented in this paper.
采用边界元法分析弹塑性问题时，需要解决塑性域剖分单元上的强奇异积分汁算问题。
When applying BEM to elastoplastic problems, the strongly singular integrals over volume cells have to be estimated.
应用有限棱柱单元法对群桩与土相互作用系统进行了三维弹塑性分析，并以无限棱柱元模拟半无限空间地基土的边界条件。
In this paper, the three dimensional elastoplastic analysis of a group pile soil interaction system is made by using the finite prism element method.
通过在节理线上提出合理的边界条件，得出了节理线附近的弹塑性区应力场。
The basic equations with Mohr-Coulomb criterion are solved by the line field analysis method near the joint line in an elastic-perfectly plastic materials.
本文采用直接边界元法，研究了土的弹塑性、粘塑性（含蠕变）及温度应力等非弹性状的边界积分方程求解摸式。
With direct B. E. M. the boundary integral equations of soil for elastoplasticity, viscoplasticity cluding creep and temperature stress are researched and soluted.
本文采用直接边界元法，研究了土的弹塑性、粘塑性（含蠕变）及温度应力等非弹性状的边界积分方程求解摸式。
With direct B. E. M. the boundary integral equations of soil for elastoplasticity, viscoplasticity cluding creep and temperature stress are researched and soluted.
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