Collapse analysis of thin-walled structures by finite element limit analysis

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A limit analysis formulation with degenerated four-node shell elements has been derived for collapse analysis of thin-walled structures. In finite element approximation, the reduced integration technique with a physical stabilization scheme is employed for prevention of locking and computational efficiency. The analysis considers sequential deformation of structures with strain-hardening effects. The collapse analysis for square tubes are carried out using the finite element limit analysis code developed and results are compared with experimental ones for load-carrying capacity and deformation modes. The present algorithm with a simple formulation has the advantage of stable convergence, computational efficiency and easy access to strain-hardening materials compared to elasto-plastic finite element analysis. Results demonstrate that the finite element limit analysis can predict the plastic collapse load and collapse mode of thin-walled structures effectively and systematically.
Publisher
TRANS TECH PUBLICATIONS LTD
Issue Date
2000
Language
ENG
Article Type
Article; Proceedings Paper
Keywords

ONE-POINT QUADRATURE; GENERAL ALGORITHM

Citation

ADVANCES IN ENGINEERING PLASTICITY, PTS 1-2 BOOK SERIES: KEY ENGINEERING MATERIALS, v.177-1, pp.714 - 12

ISSN
1013-9826
URI
http://hdl.handle.net/10203/3476
Appears in Collection
ME-Journal Papers(저널논문)
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