The programme can solve two - dimensional stresses , strains and axial symmetry problems with different yield criteria . a satisfying solution has been put forward to the contact boundary between reinforcements and soil . the special problem of two contact plane elements at the joint between plate and strip has been solved 该程序能同时考虑平面应力、平面应变和轴对称问题，并能运用不同的屈服准则，使其更具有通用性和适用性，成功地解决了筋材与土介质界面的接触问题，较好地解决了墙面板与筋带连接处出现两个接触面单元的特殊问题。
In order to overcome the drawback of classical fixed boundary models , a finite element model of structure - foundation system has been suggested in this paper for the earthquake response analysis of frame structures , such as beams and columns , are described with plane - stress 4 - node quadrilateral parametric element , and foundations with plane - strain 4 - node quadrilateral parametric element 为了正确处理结构?地基动力相互作用，改善以往固定边界模型将地震能量全部陷入结构计算模型的不合理状况，以框架结构为例提出了建筑结构地震反应分析的有限元模型及透射边界，模型中采用四结点平面应力等参单元模拟上部框架结构的梁柱构件。
In order to overcome the shortages resulted from hypothesis of small deformation in radial symmetry based on thick - wall cylinder , plane stress and uniform pressure about residual stress around cold - expanded hole , a new model was proposed which takes into consideration the effect of split - sleeve , the different states along thick direction of specimen 摘要针对目前在研究冷挤压孔边残馀应力时，大都采用基于厚壁圆筒的轴对称小变形、平面应力状态、孔边受力为均布载荷等假设所带来的不足，提出了在三维真实模型状态下，考虑衬套对孔边受力的影响、试件在厚度方向上的应力差异等因素。
Therefore , the new method is a good numerical method with great potential . cellular element method was described completely and systemically in this paper by through the solving of elastic plane stress and strain problems . the basic principle , calculating and the correlative definitions steps were described 论文以弹性力学平面应力应变问题的求解为例，对元胞单元法进行了全面的、系统的理论描述，阐述了元胞单元法的基本原理和计算步骤，给出了相关定义，并据此对该方法与其它计算方法尤其是有限元法的异同点进行了讨论。
