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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。
In this paper, the nodes of the grid structure are elasto-plastically analyzed and the nodes are calculated by the nonlinear finite element method. In order to verify the reliability of the theory and calculation procedures used, a uniaxial tensile test was performed on the three typical nodes by electrical measurement. The results show that the theory and procedure used in this paper have high accuracy. Finally, the necessity of elasto-plastic analysis is summarized.