Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
TOPOLOGY OPTIMIZATION OF BI-DIMENSIONAL COMPOSITE STRUCTURES UNDER THERMOMECHANICAL LOADS
Submission Author:
Paulo Henrique Araújo Bezerra , RN
Co-Authors:
Dorgival Junior, João Carlos Arantes Costa Júnior, Paulo Henrique Araújo Bezerra
Presenter: João Carlos Arantes Costa Júnior
doi://10.26678/ABCM.COBEM2017.COB17-1351
Abstract
This work presents a formulation for topology optimization of bi-dimensional systems under mechanical and thermal loads. The main target is to minimize structural mass under a global stress criterion and obtain maximum possible stiffness - with both stability and boundary constraints. Effective properties of materials are penalized using Solid Isotropic Microstructure with Penalization; besides, Augmented Lagrangian Method and a minimization algorithm based on Truncated Newton Approach were used for solving the constrained non-linear programming problem. Finite Element Method – quadrilateral bi-dimensional four-node element - is employed to interpolate relative densities and components of temperature and displacement fields. Results are presented for different meshes and load prescriptions.
Keywords
Topology optimization, Global Stress Criterion, Thermomechanical Loads
