Assessment of Techniques for Contact-Pair Detection in Solid Mechanics

• F. Quaranta UFRJ
• J. L. D. Alves UFRJ

DOI: https://doi.org/10.5753/sbac-pad.1998.22680

Resumo

This work presents some basic concepts of a technique used for modeling contact-impact problems between deformable solids through penalized finite element formulation handling the impenetrability condition and conserving momentum. This technique uses the concept of discrete particles and provides a way to treat general contact configurations due an automatic search for the elements involved in the phenomenon. An efficiency analysis of different algorithms used in this search is also presented. The algorithms studied were used in a finite element code, developed at PEC/COPPE, for explicit transient analysis of the non-linear behavior of axyssimetric solids.

Referências

Quaranta Neto, F. - "Estratégias Computacionais para a Simulação de Problemas de Contato-Impacto via Formulações Penalizadas de Elementos Finitos" - M.Sc. Thesis, in portuguese, Civil Engng. Dept. COPPE/UFRJ, (1995).

Neal, M. O. - "Contact-Impact by The Pinball Algorithm with Penalty, Projection and Augmented Lagrangean Methods" - Ph.D. Dissertation, Northwestern University, Evanston IL, (1989).

Costa, Luiz. A. G., Quaranta Neto, Francisco and Alves, José L. D. - "An Implementation for The Analysis of Tridimensional Contact-Impact Problems by The Pinball Algorithm" - XVIII CILAMCE, Brasilia/DF, (1997).

Alves, José Luis Drummond and Quaranta Neto, Francisco - "Penalized Techniques for Finite Element Contact-Impact Analysis" - Joint Conference of Computational Mechanics and Ibero Latin American Association of Computational Methods in Engineering, Padova, Italy, (1996).