弹塑性问题的改进无单元Galerkin方法计算软件开发  

Improved element-free Galerkin method computing software development for elastoplastic problems

作　　者：张明哲 彭妙娟[1] 程玉民[1] ZHANG Mingzhe;PENG Miaojuan;CHENG Yumin(School of Mechanics and Engineering Sciences,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学力学与工程科学学院,上海200444

出　　处：《计算机辅助工程》2022年第3期5-12,共8页Computer Aided Engineering

摘　　要：采用C++语言开发弹塑性问题的改进无单元Galerkin方法软件:其前处理程序通过链接库编程建模,进行节点数据采集,获得节点配置等信息并将模型信息可视化;采用改进的无单元Galerkin方法编写计算模块,获得节点位移、应力和应变等信息;其后处理程序对计算程序得到的数据进行图形化显示,实现计算结果的可视化。自由端受集中力载荷的悬臂梁算例分析验证该软件及其方法的有效性和优越性。An improved element-free Galerkin method software for elastoplasticity is developed with C++ language. The pre-processing program carries out programming modeling using link library, and collects node data, obtains node configuration and other information, and then the model information is visualized. The improved element-free Galerkin method is used to compile the calculation module, and the information of node displacement, stress and strain is obtain. After that, the post-processing program graphically displays the data obtained by the calculation program to realize the visualization of the calculation results. The effectiveness and superiority of the software and its method are verified by the analysis of a cantilever beam with a concentrated load at its free end.

关 键 词：无网格方法 改进无单元Galerkin方法 弹塑性 前后处理程序 

分 类 号：TP391.99[自动化与计算机技术—计算机应用技术] TB115.1[自动化与计算机技术—计算机科学与技术]