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Mixed formulation of nonlinear beam on foundation elements

✍ Scribed by Ashraf Ayoub

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
383 KB
Volume
81
Category
Article
ISSN
0045-7949

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✦ Synopsis

This paper presents an inelastic element for the analysis of beams on foundations. The element is derived from a twofield mixed formulation with independent approximation of forces and displacements. The state determination algorithm for the implementation of the element in a general purpose nonlinear finite element analysis program is presented and its stability characteristics are discussed. Numerical studies are performed to compare the model with the classical displacement formulation. The studies confirm the superiority of the proposed model in describing the inelastic behavior of beams on foundations.

πŸ“œ SIMILAR VOLUMES

A physically nonlinear dual mixed finite
A physically nonlinear dual mixed finite element formulation
✍ J. SchrΓΆder; O. Klaas; E. Stein; C. Miehe πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 966 KB

This paper presents the formulation and numerical implementation of a physically nonlinear BDM element for plane stress. The BDM element is based on the dual extended Prange-Hellinger-Reissner functional. We discuss in detail, the linearization of the extended functional. needed for solving the syst