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动力弹塑性分析的无网格自然单元法
引用本文:陈莘莘,李庆华,刘应华,薛志清.动力弹塑性分析的无网格自然单元法[J].固体力学学报,2011,32(5):493-499.
作者姓名:陈莘莘  李庆华  刘应华  薛志清
作者单位:1. 湖南工业大学土木工程学院2. 清华大学工程力学系
基金项目:国家自然科学基金(11002054)资助
摘    要:基于无网格自然单元法,提出了结构动力弹塑性响应分析的一条新途径.自然单元法是一种新兴的无网格数值计算方法,其实质是基于自然邻近插值的伽辽金法.自然单元法在本质边界条件的施加上较采用移动最小二乘法的无网格法具有明显的优势.在空间域上采用自然单元法离散,并运用加权余量法推导了动力弹塑性分析的离散控制方程.然后,采用预校正形...

关 键 词:无网格法  自然单元法  动力响应  弹塑性
收稿时间:2010-09-27

APPLICATION OF MESHLESS NATURAL ELEMENT METHOD TO DYNAMIC ELASTOPLASTIC ANALYSIS
Shenshen Chen,Qinghua Li,Yinghua Liu,Zhiqing Xue.APPLICATION OF MESHLESS NATURAL ELEMENT METHOD TO DYNAMIC ELASTOPLASTIC ANALYSIS[J].Acta Mechnica Solida Sinica,2011,32(5):493-499.
Authors:Shenshen Chen  Qinghua Li  Yinghua Liu  Zhiqing Xue
Institution:Shenshen Chen1 Qinghua Li1 Yinghua Liu2 Zhiqing Xue1 (1 College of Civil Engineering,Hunan University of Technology,Zhuzhou,412007)(2 Department of Engineering Mechanics,School of Aerospace,Tsinghua University,Beijing,100084)
Abstract:A new algorithm for dynamic elastoplastic analysis is put forward on the basis of the meshless natural element method.The natural element method(NEM) is a recently developed meshless method and is essentially the Galerkin method based on natural neighbour interpolation.Compared with the meshless methods based on the moving least squares approximation,The NEM possesses notable advantages in the enforcement of essential boundary conditions.The space domain is discretized with the NEM and the discretized gover...
Keywords:meshless method  natural element method  dynamic response  elastoplasticity  
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