Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
Influence of BESO topology optimization parameters on the design of periodic cellular material with zero thermal expansion
Submission Author:
Lidy Anaya Jaimes , SP
Co-Authors:
Lidy Anaya Jaimes, William Vicente, Renato Pavanello
Presenter: Lidy Anaya Jaimes
doi://10.26678/ABCM.MECSOL2022.MSL22-0205
Abstract
Topology optimization design of periodic cellular materials depends on the topology optimization method being used, as well as on their parameter setting, which in general are defined arbitrarily or based on the literature. In this work, the influence of the design parameters of the Bi-directional Evolutionary Structural Optimization method in the design of metamaterials with zero thermal expansion is investigated. The effects of the evolutionary ratio, addition ratio, filter radio, and volume percentages on the objective function are studied. The different sets of parameters show that the objective function is dependent on some BESO parameters while it is independent of others. It is also verified that for a final topology with 50\% solid material, there is a better volume percentage ratio between materials with low and high thermal expansion coefficients.
Keywords
Topology optimization, Thermal expansion coefficients, Homogenization method, BESO method
