On the computation of interface stresses by finite elements for sandwich materials

Vincent Manet (1)

1 MEM - Département Mécanique et Matériaux

In this article, we recall the methods generally followed to compute stresses, and then develop a simple alternative. In order to improve the accuracy and stability with very few elements, we improve the proposed method to a second one. The latter method is then assessed on two examples to compute interface stresses of a sandwich structure. The robustness of the method is terms of convergence speed, accuracy and stability is demonstrated. The simplicity of formulation and implementation is also emphasized.

Mots clés: sandwich structure; interface stresses; post-processing; local Reissner

Domaines: Mécanique des solides [physics.class-ph]; Mécanique des solides [physics.class-ph]

Vincent Manet. On the computation of interface stresses by finite elements for sandwich materials. Composite Structures, 1999, 44 (4), pp.289-295. ⟨10.1016/S0263-8223(99)00004-5⟩. ⟨hal-00659214⟩