The Local Average Contact (LAC) method

Micheline Abbas (1) , G Drouet (2) , P Hild (3)

1 EDF R&D MMC - Matériaux et Mécanique des Composants
2 EDF R&D - EDF R&D
3 IMT - Institut de Mathématiques de Toulouse UMR5219

The Local Average Contact (LAC) method allows the handling of nonmatch-ing meshes in an easy way by averaging locally the interpenetration between the contacting bodies. In this paper we consider several numerical experiments involving two and three-dimensional bodies discretized with various linear and quadratic finite elements. We also present a convergence analysis of the method in the geometrical nonconforming case in which the boundary points of the candidate contact areas do not coincide.

Mots clés: Local Average Contact (LAC) condition; Unilateral contact; nonmatching meshes; geometrical nonconformity

Domaines: Analyse numérique [math.NA]; Mécanique des solides [physics.class-ph]

Micheline Abbas, G Drouet, P Hild. The Local Average Contact (LAC) method. 2018. ⟨hal-01682901v1⟩