CRITICAL SURVEY OF THE 9-NODE DEGENERATED SHELL ELEMENT WITH SPECIAL EMPHASIS ON THIN SHELL APPLICATION AND REDUCED INTEGRATION

被引：120

作者：

PARISCH, H

机构：

[1] Institut für Statik und Dynamik der Luft- und Raumfahrtkonstruktionen, University of Stuttgart

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1979年 / 20卷 / 03期

关键词：

D O I：

10.1016/0045-7825(79)90007-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Since the publication of Ahmad's degenerated thick shell element in 1970, a large number of authors have studied this simple type of element and made their proposals for improving its behaviour. Special emphasis was placed on thin plate and shell applications. The present paper discusses special aspects of the 9-node Lagrangian element. Interesting facts are presented-in particular, a mathematical explanation of why reduced shear integration leads to improved results. Another topic deals with thin plate and shell applications. A modification of the stiffness is proposed which allows the application of the element like a Kirchhoff-type model to any plate problem. In the final section a case study of a variety of proposed element models is presented, and the accuracy is shown for various plate and shell problems. © 1979.

引用

页码：323 / 350

页数：28

共 22 条

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