Numerical wrinkling prediction of thin hyperelastic structures by direct energy minimization

Authors:
Yann Lecieux;Rabah Bouzidi
Affiliations:
L'UNAM Université, Université de Nantes-Ecole Centrale Nantes, GeM, Institut de Recherche en Génie Civil et Mécanique, UMR CNRS 6183, 2 rue de la Houssinière, BP 92208 443 ...;L'UNAM Université, Université de Nantes-Ecole Centrale Nantes, GeM, Institut de Recherche en Génie Civil et Mécanique, UMR CNRS 6183, 2 rue de la Houssinière, BP 92208 443 ...
Venue:
Advances in Engineering Software
Year:
2012

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Abstract

This paper is concerned with an efficient algorithm for the wrinkling with finite strains of very thin structures made of hyperelastic material. In this work, the problem of wrinkling is solved by directly minimizing the total potential energy of the structure. The numerical solution is carried out by the means of an iterative method such as the conjugate gradient algorithm. Although the proposed approach is theoretically equivalent to the traditional finite element method, it proves to be an attractive alternative which is particularly efficient for thin wrinkled structures.