线弹性幂强化材料平面杆系弹塑性分析的数值解

各杆任意铰接在一个刚体上的平面杆系是一种比较复杂的杆系结构，某些其它类型的平面杆系常常可以看作是它的特例。本文将材料的本构关系描述为线性幂强化形式，推导出了该类平面杆系结构弹塑性分析的普遍表达式，编制了通用程序，使这一类问题有了一个通用的解题方法。

Numerical solution of the elastic and plastic analysis for the linearly elastic and power hardening structure of the bars

It is a complex structure of bars that all bars are arbitrary pinned to a rigid body and it is of general significance. Some other structures of bars can be considered as its special cases. In this paper, we use linearly elastic and power hardening function to approximately represent the stress\|strain curve of material. The nonlinear equations about the elastic and plastic analysis in the linearly elastic and power hardening structures of the bars have been derived and the general program has been worked out. These problems have a universal method of solution.