Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
MULTI-MATERIAL TOPOLOGY OPTIMIZATION WITH SIMP FORMULATION AND HEAVISIDE THRESHOLD FUNCTION FILTER
Submission Author:
Herbert Gomes , RS
Co-Authors:
Artur Lagemann, Herbert Gomes
Presenter: Herbert Gomes
doi://10.26678/ABCM.COBEM2023.COB2023-1092
Abstract
Topological optimization of parts and components is a reality today. However, little is explored about the possibility of using more than one type of material in its construction. This is beneficial in generating new possibilities for structural topological optimization, making rational and efficient use of the specific strength properties of each material where necessary, in addition to reducing design and production costs. This work aims to investigate and modify the implementations proposed by TAVAKOLI and MOHSENI (2014) for a multi-material topological optimization algorithm with SIMP formulation, making use of volumetric constraints for each of the material phases. Furthermore, we seek to implement a material filter with a Heaviside threshold function - based on CUI et al. (2018) - for the final densities, in order to make the resulting topology more defined, with as few intermediate densities as possible. Results for benchmark cases from the literature are evaluated in comparison with the results of the implemented code, in addition to performing parametric studies for the variables of the algorithm
Keywords
Topological Optimization, multimaterial, finite elements method, SIMP, Heaviside threshold filter
