Open Access

ARTICLE

A Frictionless Contact Algorithm for Meshless Methods

R. Vignjevic¹, T. De Vuyst², J. C. Campbell¹

1 School of Engineering, Cranfield University, Bedfordshire MK43 0AL, UK
2 Cenaero, Belgium

Computer Modeling in Engineering & Sciences 2006, 13(1), 35-48. https://doi.org/10.3970/cmes.2006.013.035

Abstract

An approach to the treatment of contact problems involving frictionless sliding and separation under large deformations in meshless methods is proposed. The method is specially suited for non-structured spatial discretisation. The contact conditions are imposed using a contact potential for particles in contact. Inter-penetration is checked as a part of the neighbourhood search. In the case of conventional SPH contact conditions are enforced on the boundary layer 2h thick while in the case of the normalized SPH contact conditions are enforced for the particles lying on the contact surface. The implementation of the penalty based contact algorithm for the explicit time integration scheme is described and the performance of the new contact algorithm is illustrated with a number of examples.

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Keywords

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