平面曲梁几何非线性有限元分析

本文基于文5]所建立的曲梁单元,根据非线性的应变-位移关系,推导出平面曲梁单元的切线刚度矩阵,并编制了平面曲梁几何非线性分析程序。计算结果表明本文建立的平面曲梁单元计算精度明显高于以直梁模拟曲梁的结果。

Plane curved beam geometry non-linear finite element analysis

This article curved beam unit which establishes based on article 5],relates according to the non-linear strain-displacement,infers the plane curved beam unit the tangent stiffness matrix,and has established the plane curved beam geometry nonlinear analysis procedure.The computed result indicated this article establishes the plane curved beam unit computation precision is higher than obviously by the straight beam simulation curved beam result.