半空间体物理非线性分析的半解析元法  

Analysis of The Halfspace's Physical-Nnnlinearity Mechanics by the Semi-Analytical Element Method

作　　者：陈敬虞 

机构地区：[1]宁夏工学院基础部

出　　处：《宁夏工学院学报（自然科学版）》1996年第1期16-21,共6页

摘　　要：本文提供了半空间体物理非线性力学分析的半解析元法，给出了物理非线性半解析无法分析时的弹塑性刚度矩阵及增量──常刚度迭代法的计算步骤．本文对三维物体采取二维解析，一维离散的办法建立半解析单元，与有限元法相比，其自由度大大降低，极大地减少了计算机内存和计算工作量．The Semi-Analytical Element Method(SAEM)for analyzing the physical -nonlinearity mechanics of the half space is provided.The elasto-plastic stiffness matrix and the incremental-constant stiffness iterative steps for the SAEM analyzing the physical-nonlieartity problem is also given in this paper.For three-dimensional objects,the semi -analytical elements ace founded by two-dimentional analytic founctions and one-dimensional interpolating founctions. Contrasting the Finite-Element Method,the degrees of freedon of this method are reduced greatly, therefore the internal memory and the computational effort of the computer are cut down enovmously.

关 键 词：半空间体 物理非线性 半解析元法 弹塑性 

分 类 号：O34[理学—固体力学] TB115[理学—力学]