Elasto-plastic large deformation analysis of thin-walled structures

Al-Bermani F.G.A. and Kitipornchai S. (1990) Elasto-plastic large deformation analysis of thin-walled structures. Engineering Structures, 12 1: 28-36. doi:10.1016/0141-0296(90)90035-Q

Author Al-Bermani F.G.A.
Kitipornchai S.
Title Elasto-plastic large deformation analysis of thin-walled structures
Journal name Engineering Structures   Check publisher's open access policy
ISSN 0141-0296
Publication date 1990
Sub-type Article (original research)
DOI 10.1016/0141-0296(90)90035-Q
Volume 12
Issue 1
Start page 28
End page 36
Total pages 9
Subject 2205 Civil and Structural Engineering
Abstract This paper presents an elasto-plastic, large deformation analysis of thin-walled structures. A solution procedure for treating both the geometric and material nonlinearities, based on an updated Lagrangian formulation, is proposed. The procedure is suitable for analysing large-scale space frames since the structures may be modelled using only a single beam-column element per member. It is achieved by incorporating a displacement stiffness matrix which provides the necessary coupling between the axial stretching and the flexural and torsional deformations. The geometric and the displacement stiffness matrices for a general, thin-walled, beam-column element previously derived in References 1 and 2 are used. Plastic hinge formation, the interaction of element forces at the hinges and elastic unloading are taken into account in the analysis. In particular, a single-equation, stress-resultant yield surface has been developed to model the plastification of structural steel angle sections under a combination of axial force and moments about the principal axes. Yield surfaces for tubular sections and American wide flange sections are also considered. Several numerical examples are presented to demonstrate the accuracy and efficiency of the method.
Keyword angle section
elasto-plastic analysis
finite element
lumped plasticity
nonlinear analysis
numerical method
offshore structure
space frame
yield surface
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
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Citation counts: TR Web of Science Citation Count  Cited 30 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 41 times in Scopus Article | Citations
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