求解安全系数的有限元法

Finite element method for solving the factor of safety

摘要: 分析了目前在利用弹塑性有限元法求解安全系数时所存在的一些问题 ,指出在对强度参数折扣的同时 ,必需满足 φ和ν 不等式 :sinφ ≥ 1-2ν,才能使所求得的安全系数接近于经典的极限平衡法。

Abstract: Some problems are analyzed in the finite element method for solving the factor of safety in this paper.It is suggested that  sin φ≥1-2ν should be satisfied so as to obtain the factor of safety approximate to that obtained by the classical limit equilibrium analysis.