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首页> 外文期刊>Computer Methods in Applied Mechanics and Engineering >Some computational aspects of a group theoretic finite element approach to the buckling and postbuckling analyses of plates and shells-of revolution
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Some computational aspects of a group theoretic finite element approach to the buckling and postbuckling analyses of plates and shells-of revolution

机译：板和壳旋转的屈曲和后屈曲分析的群理论有限元方法的一些计算方面

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摘要

Progress in the application of group theoretic methods to the nonlinear bifurcation analysis of symmetric structures has provided new hope in understanding the global postbuckling behavior of symmetric thin shell structures. However, what is still lacking in the computational mechanics community is a general purpose FE code with a group theoretic capability designed to take 'optimal' advantage of existing symmetry. This paper addresses some of the important issues associated with developing such a code--the long term goal being to provide structural analysts with new numerical tools for doing careful global analyses of imperfection sensitive structures which may eventually lead to more accurate predictions of the maximum load-carrying capacity of thin imperfection sensitive shell structures.
机译：群理论方法在对称结构非线性分叉分析中的应用进展为理解对称薄壳结构的整体后屈曲行为提供了新的希望。但是，计算力学界仍然缺乏具有组理论能力的通用FE代码，旨在利用现有对称性的“最佳”优势。本文讨论了与开发此类代码相关的一些重要问题-长期目标是为结构分析人员提供新的数值工具，以便对不完善的敏感结构进行仔细的全局分析，最终可能导致对最大载荷的更准确的预测薄弱缺陷敏感壳结构的承载能力。

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