针对工程中的接触问题, 基于理想弹塑性理论, 建立了弹塑性摩擦接触模型, 用来模拟接触面的切向变形和剪切破坏。根据接触面上的非线性特点, 建立了判断接触面单元状态的3种接触模式。
因此，建议采用理想弹塑性模型的强度折减法确定安全系数，采用变模量弹塑性模型强度折减法确定变形场。
It is proposed that the ideal elastoplastic model can be used to determine the safety factor, and the variable modulus elastoplastic model to calculate the deformation field.
目前用于边坡稳定性分析的数值方法中的强度折减法通常是仅对强度参数进行折减，且采用的是理想弹塑性模型。
At present, only the strength parameters are reduced when the strength reduction method is used to analyze the slope stability; moreover, the ideal elastoplastic model is used.
本文以槽钢为主要研究对象，假定材料为理想弹塑性体，在ANSYS中建立其有限元模型。
The main study object of the paper is channel steel whose finite element models are founded in ANSYS the material is assumed as elastic-plastic body.
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