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Incremental finite element solution for nonlinear problems of space trusses

Qilin, Zhang

AbstractBased on an updated total Lagrangian formulation, an accurate incremental stiffness matrix and corresponding finite element equation for nonlinear problems of space trusses are derived in this paper. The modified arc-length iteration technique is presented to solve the ultimate strength and the load-deflection curves of space trusses. The stiffness matrix has a symmetric and concise form in which the large defletion effects on structures can be included accurately and the material nonlinearity can be considered easily. Numerical examples show that the incremental finite element method presented in this paper can be used to analyse the elastoplastic large deflection problems of space trusses satisfactorily and effectively.

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Incremental finite element solution for nonlinear problems of space trusses

Qilin, Zhang

AbstractBased on an updated total Lagrangian formulation, an accurate incremental stiffness matrix and corresponding finite element equation for nonlinear problems of space trusses are derived in this paper. The modified arc-length iteration technique is presented to solve the ultimate strength and the load-deflection curves of space trusses. The stiffness matrix has a symmetric and concise form in which the large defletion effects on structures can be included accurately and the material nonlinearity can be considered easily. Numerical examples show that the incremental finite element method presented in this paper can be used to analyse the elastoplastic large deflection problems of space trusses satisfactorily and effectively.

Incremental finite element solution for nonlinear problems of space trusses

Qilin, Zhang

AbstractBased on an updated total Lagrangian formulation, an accurate incremental stiffness matrix and corresponding finite element equation for nonlinear problems of space trusses are derived in this paper. The modified arc-length iteration technique is presented to solve the ultimate strength and the load-deflection curves of space trusses. The stiffness matrix has a symmetric and concise form in which the large defletion effects on structures can be included accurately and the material nonlinearity can be considered easily. Numerical examples show that the incremental finite element method presented in this paper can be used to analyse the elastoplastic large deflection problems of space trusses satisfactorily and effectively.

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Title:

Incremental finite element solution for nonlinear problems of space trusses

Contributors:

Qilin, Zhang (author)

Published in:

Journal of Constructional Steel Research ; 20 ; 89-104

Publication date:

1991-09-02

Size:

16 pages

ISSN:

DOI:

https://doi.org/10.1016/0143-974X(91)90014-R

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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