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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 55
ADVANCES IN COMPUTATIONAL STRUCTURAL MECHANICS
Edited by: B.H.V. Topping
Paper XVI.10

A New Hybrid FEM-BEM Approach to Structural Shape Optimization

J.S. Campbell and D. Kelliher

Department of Civil and Environmental Engineering, University College Cork, Ireland

Full Bibliographic Reference for this paper
J.S. Campbell, D. Kelliher, "A New Hybrid FEM-BEM Approach to Structural Shape Optimization", in B.H.V. Topping, (Editor), "Advances in Computational Structural Mechanics", Civil-Comp Press, Edinburgh, UK, pp 441-446, 1998. doi:10.4203/ccp.55.16.10
Abstract
An algorithm for structural shape optimisation (SSO) is presented which utilises the BEM for the calculation of geometric sensitivities. These are then used to get the structural response sensitivities e.g. stress and displacement, which are used at the optimisation stage, using the semianalytical method of sensitivity analysis. The structural analysis is carried out using the FEM and Sequential Linear Programming (SLP) is the optimisation method utilised. Selected examples demonstrate the use of the algorithm.

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