网格结构节点的弹-塑性分析研究

Elastic-Plastic Analysis of Grid Nodes

本文对网格结构的节点进行了弹-塑性分析,用非线性有限元方法计算节点。为了验证所用理论及计算程序的可靠性还用电测法对三种典型节点作了单向拉伸试验。结果表明本文所用理论及程序具有较高的精度。最后综述了进行弹-塑性分析的必要性。

Several typical grid nodes are investigated based on the elastic-plastic theory. A program using nonlinear finite element method to compute these nodes is designed in FORT77 language. The tests of one direction tension are made on 3 types of nodes, the results show that the analysis in this paper is of comparatively high accuracy. Finally, the necessity of elastic-plastic analysis is discussed.