An Improved Arc-Length Method and Application in the Post-Buckling Analysis for Composite Structures

ZHU Ju-fen; CHU Xiao-ting

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Article Navigation > Applied Mathematics and Mechanics > 2002 > 23(9): 961-967

ZHU Ju-fen, CHU Xiao-ting. An Improved Arc-Length Method and Application in the Post-Buckling Analysis for Composite Structures[J]. Applied Mathematics and Mechanics, 2002, 23(9): 961-967.

Citation:

ZHU Ju-fen, CHU Xiao-ting. An Improved Arc-Length Method and Application in the Post-Buckling Analysis for Composite Structures[J]. Applied Mathematics and Mechanics, 2002, 23(9): 961-967.

Citation:

ZHU Ju-fen, CHU Xiao-ting. An Improved Arc-Length Method and Application in the Post-Buckling Analysis for Composite Structures[J]. Applied Mathematics and Mechanics, 2002, 23(9): 961-967.

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An Improved Arc-Length Method and Application in the Post-Buckling Analysis for Composite Structures

Department of Engineering Mechanics, Dalian University of Technology, Dalian 116023, P. R. China

Received Date: 2001-03-09
Rev Recd Date: 2002-05-16
Publish Date: 2002-09-15

Abstract

Abstract

Based on the conventional arc-length method, an improved arc-length method with high-efficiency is proposed. The weighted modifications with respect to the variation of structural stiffness and extra-interpolation modification by using the information of known equilibrium points are introduced to improve the incremental arc-length. An approximate expansion method for the accumulated and expected arc-length is used to ensure the convergence at given load levels in large range of applications. Numerical results show that the improved arc-length method has well adaptability and higher efficiency in the post-buckling analysis of plates and shells structures for tracing whole load-deflection path and obtaining the convergence values at any specified load levels.
- non-linear,
- finite element analysis,
- arc-length method,

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References(6)

References

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