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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 7/8
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON THE DESIGN AND CONSTRUCTION OF NON-CONVENTIONAL STRUCTURES
Edited by: B.H.V. Topping
Paper VIII.5

Geometrically and Materially Nonlinear Finite Element Analysis of Shell Structures

A.J. Kent* and E. Hinton+

*Finite Element Analysis Ltd, Kingston Upon Thames, Surrey, UK
+Department of Civil Engineering, University College of Swansea, Singleton Park, Swansea, UK

Full Bibliographic Reference for this paper
A.J. Kent, E. Hinton, "Geometrically and Materially Nonlinear Finite Element Analysis of Shell Structures", in B.H.V. Topping, (Editor), "Proceedings of the International Conference on the Design and Construction of Non-Conventional Structures", Civil-Comp Press, Edinburgh, UK, pp 205-211, 1987. doi:10.4203/ccp.7.8.5
Abstract
This paper describes the development of a finite element model for the nonlinear analysis of shell and slab structures. Both geometric and material sources of nonlinearity are considered. The shell formulation is based on the degenerate thick shell element and a Total Lagrangian description, and is capable of representing finite deformations. The materially nonlinear behaviour of reinforced concrete is represented using a fracturing-plasticity constitutive model based on fracture mechanics principles, and an elasto-plastic smeared steel model. The equation solution procedure incorporates a family of constrained algorithms (spherical path, updated normal plane, and displacement incrementation) as part of an automatic and self adaptive solution strategy. A selection of solved examples are presented, covering a range of geometrically, materially and combined nonlinear shell and slab behaviour.

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