The Coupling of the Biological Growth Method and the Boundary Element Method for Structural Shape Optimisation

C. WESSEL; L. C. WROBEL; A.P. CISILINO

Santa Fe

Congreso; XV Congreso sobre Métodos Numéricos y sus Aplicaciones ENIEF2006; 2006

Asociación Argentina de Mecánica Computacional

A numerical evolutionary procedure for structural optimisation of two-dimensional structures based on the Biological Growth Method (BGM) is shown and is implemented using two Boundary Element Method (BEM) formulations: the standard for two-dimensional elastostatics for the stress or strain analysis, and the Dual Reciprocity Method (DRM) for modelling the swelling/shrinking of the optimisation domain. Advancing previous work done by the authors on the original stress formulation of the BGM, tangential strains are used as objective functions in this paper.