Development of numerical models for probabilistic topology optimization analysis using the boundary element method

• Grant number: 15/07931-5
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: September 01, 2015
• End date: August 31, 2016
• Field of knowledge: Engineering - Civil Engineering - Structural Engineering
• Principal Investigator: Edson Denner Leonel
• Grantee: Hugo Luiz Oliveira
• Supervisor: Alaa Chateauneuf
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: Université Blaise Pascal, France
• Associated to the scholarship: 12/24944-5 - Development of numerical models applied to probabilistic topological optimization analyses using the Boundary Element Method, BP.DR

Abstract

This PhD internship project aims to complement the ongoing research project, which is been developed at University of São Paulo in Brazil. This partnership is important to develop new and more efficient formulations for structural analysis. The focus is the topology optimization as a numerical approach to assist the engineering design task. The minimum compliant structures have no ability for stress redistribution due to its natural full stress design. In such case, any manufacturing defect, as cracks, change in the material properties and/or loads could lead to disastrous collapse. Reliability gives the proper approach to determine how uncertainties propagate along the structural system. Based on this knowledge, the design of structural system is less sensitive to all relevant random parameters. It provides a way to propose more efficient and economical structural systems. During this internship, the goal concerns the development of a coupling model based on reliability concepts and topology optimization, giving rise to a promising numerical tool applicable to general 2-D structural systems. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

OLIVEIRA, HUGO LUIZ; CHATEAUNEUF, ALAA; LEONEL, EDSON DENNER. Probabilistic mechanical modelling of concrete creep based on the boundary element method. ADVANCES IN STRUCTURAL ENGINEERING, v. 22, n. 2, p. 337-348, JAN 2019. (12/24944-5, 15/07931-5)

OLIVEIRA, HUGO LUIZ; CHATEAUNEUF, ALAA; LEONEL, EDSON DENNER. Boundary Element Method applied to decision-making problems involving geometric variabilities in topology optimization. Engineering Analysis with Boundary Elements, v. 85, p. 116-126, DEC 2017. (12/24944-5, 15/07931-5)

OLIVEIRA, HUGO LUIZ; LEONEL, EDSON DENNER. Boundary element method applied to topology optimization using the level set method and an alternative velocity regularization. MECCANICA, v. 54, n. 3, p. 549-563, FEB 2019. (12/24944-5, 15/07931-5)