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FEM-based shakedown analysis of hardening structures

  • This paper develops a new finite element method (FEM)-based upper bound algorithm for limit and shakedown analysis of hardening structures by a direct plasticity method. The hardening model is a simple two-surface model of plasticity with a fixed bounding surface. The initial yield surface can translate inside the bounding surface, and it is bounded by one of the two equivalent conditions: (1) it always stays inside the bounding surface or (2) its centre cannot move outside the back-stress surface. The algorithm gives an effective tool to analyze the problems with a very high number of degree of freedom. Our numerical results are very close to the analytical solutions and numerical solutions in literature.

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Author:Phu Tinh PhamORCiD, Manfred StaatORCiD
ISSN:2196-1166 (E-Journal)
Parent Title (English):Asia Pacific journal on computational engineering
Place of publication:Berlin
Document Type:Article
Year of Completion:2014
Date of the Publication (Server):2014/05/12
Length:13 Seiten
First Page:Article No. 4
Institutes:FH Aachen / Fachbereich Medizintechnik und Technomathematik
FH Aachen / IfB - Institut für Bioengineering
collections:Verlag / SpringerOpen
Open Access / Gold