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Title: Geometric and material nonlinear analysis of structures comprising rectangular hollow sections
Authors: Kitipornchai, S
Al-Bermani, FGA
Chan, SL 
Issue Date: 1988
Publisher: Pergamon Press
Source: Engineering structures, 1988, v. 10, no. 1, p. 13-23 How to cite?
Journal: Engineering structures 
Abstract: This paper presents a nonlinear finite element analysis of structures comprising thin-walled rectangular hollow sections. Nonlinearities due to both the change of geometry and material yielding are included, incorporating also the effects of strain-unloading. The geometry and the stiffness of the elements are modified and used to update the structure tangent stiffness matrix. An iterative numerical procedure combining the arc-length and the work methods is employed for the solution of the incremental equation of equilibrium. The method has been applied successfully to predict the nonlinear load-deflection behavior of isolated cold-formed SHS columns, fabricated RHS parabolic fixed end arches, and double chord SHS trusses having different joint configurations.
ISSN: 0141-0296
EISSN: 1873-7323
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