Simulação numérica de problemas de contato estrutural com elementos mortar-based de alta-ordem

Author(s)

Allan Patrick Cordeiro Dias

• Document type: Doctoral Thesis
• Press: Campinas, SP.
• Institution: Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica
• Defense date: 2017-08-28

Examining board members

Marco Lúcio Bittencourt; Alberto Luiz Serpa; José Luiz Boldrini; Eduardo Alberto Fancello; Alfredo Gay Neto

• Advisor: Marco Lúcio Bittencourt; Sergio Persival Baroncini Proença

Abstract

In the present work, we present a new high-order mortar-based contact element for solution of two and three-dimensional frictional contact problems, considering small and large deformations. The Neo-Hookean isotropic compressible hyperelastic material model was considered. The mapping of curved surfaces of elements was performed with Non-Uniform Rational B-Splines (NURBS). We verify the behavior of the element in small and large deformation with known solutions in the literature and present studies of accuracy and processing time of the contact elements for h- and p-refinements. As applications in dynamic contact, we present solutions for structural impact problems with high-order contact element. The comparative results show that the high-order interpolation is a strategy with superior performance for the contact problems analysed improving the solution accuracy of the stresses and forces generated by contact with a lower processing time (AU)

• FAPESP's process: 13/10523-0 - Numerical Simulation of Structural Dynamic Contact Problems with High-Order Finite Element Using High Performance Computing.
• Grantee: Allan Patrick Cordeiro Dias
• Support Opportunities: Scholarships in Brazil - Doctorate