Several works are included in the second part . first , the four - node degenerated shell element is adopted to simulate the nonlinear structural behavior 在论文的第二部分,笔者进行了混凝土板、壳及箱型结构非线性有限元分析的研究。
Basic theory of nonlinear fem analysis and its realization in ansys were studied , three kinds of nonlinear structural behaviors , the basic equations of elastic and plastic problem and strength criterion commonly used were discussed 阐述了三类非线性问题,讨论了弹塑性分析的基本方程和常用的强度准则,并较详细介绍了ansys中有限元仿真分析的基本过程。