|本期目录/Table of Contents|

[1]高陈燕,尹冠生,马超.基于有限变形理论的ANSYS几何非线性算法缺陷分析[J].建筑科学与工程学报,2008,25(02):106-110.
　GAO Chen-yan,YIN Guan-sheng,MA Chao.Analysis of Deficiency of ANSYS Geometric Nonlinear Arithmetic Based on Finite Deformation Theory[J].Journal of Architecture and Civil Engineering,2008,25(02):106-110.
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基于有限变形理论的ANSYS几何非线性算法缺陷分析(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
25卷
期数:
2008年02期
页码:
106-110
栏目:
出版日期:
2008-06-20

文章信息/Info

Title:
Analysis of Deficiency of ANSYS Geometric Nonlinear Arithmetic Based on Finite Deformation Theory
作者:
高陈燕，尹冠生，马超
长安大学理学院,陕西西安710064
Author(s):
GAO Chen-yan, YIN Guan-sheng, MA Chao
School of Science, Chang'an University, Xi'an 710064, Shaanxi, China
关键词:
ANSYS;  有限变形理论;  几何非线性;  共轭关系
Keywords:
ANSYS;  finite deformation theory;  geometric nonlinearity;  conjugacy relation
分类号:
TU12
DOI:
-
文献标志码:
A
摘要:
基于有限变形理论对ANSYS定义的应变、应力与物体真实应力之间的关系、位形、不平衡力的几何非线性计算等方面进行了详细分析,并针对ANSYS中的杆件单元Link8和平面单元Plane42,通过算例计算结果与理论解的对比,指出了ANSYS几何非线性算法的不足,即在计算过程中没有考虑到应变、应力的共轭关系,只是一种近似的非线性计算。
Abstract:
The definition of strain, the relationship between computation stress and true stress of body, deformation as well as geometric nonlinear computation of unbalance force were analyzed in details by using ANSYS based on finite deformation theory. The calculation values of rod element Link8 and 2-D element Plane42 solved by ANSYS were compared with the theoretical solutions. The comparison points out that ANSYS geometric nonlinear arithmetic is deficient, ie without considering the conjugacy relation of stress and strain, it is an approximate nonlinear calculation.

参考文献/References:

[1] 凌道盛,徐 兴. 非线性有限元及程序[M].杭州:浙江大学出版社,2004:153-187. LING Dao-sheng,XU Xing.Nonlinear Finite Element and Procedures[M].Hangzhou:Zhejiang University Press,2004:153-187.
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[6]赵均海,王敏强,魏雪英.高等有限元[M].武汉:武汉理工大学出版社,2004. ZHAO Jun-hai,WANG Min-qiang,WEI Xue-ying.Higher Finite Element Method[M].Wuhan:Wuhan University of Technology Press,2004.
[7]程 磊,瞿伟廉.基于Hilbert-Huang变换理论的非平稳数据处理[J].建筑科学与工程学报,2007,24(1):26-30. CHENG Lei,QU Wei-lian.Non-stationary Data Processing Based on Hilbert-Huang Transform Theory[J].Journal of Architecture and Civil Engineering,2007,24(1):26-30.

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备注/Memo

备注/Memo:
收稿日期:2008-02-20
基金项目:陕西省自然科学基础研究计划项目(2005E213)
作者简介:高陈燕(1981-),女,福建古田人,工学硕士研究生,E-mail:gaochenyan81@163.com。
更新日期/Last Update: 2008-06-20