[A variational formulation for the contact problem with Coulomb friction]
A variational relationship is proposed as the weak form of the large deformation contact problem with Coulomb friction. It is a mixed relationship involving both the displacements and the multipliers; the weighting functions are the virtual displacements and the virtual multipliers. It is shown that the proposed weak form is equivalent to the strong form of the initial/boundary value contact problem and the multipliers are equal to the contact tractions.
Dans ce travail, on propose une formulation variationnelle du problème de contact en grandes transformations avec frottement de Coulomb. Il s'agit d'une formulation mixte où les champs inconnus sont à la fois le champ des déplacements et le champ des multiplicateurs, et où les fonctions poids sont le champ des déplacements virtuels et le champ des multiplicateurs virtuels. On montre que le problème faible proposé équivaut bien au problème fort de contact et que les multiplicateurs sont égaux aux contraintes de contact.
Accepted:
Published online:
Keywords: Friction, Unilateral contact
Anh Le van 1; Tai H.T. Nguyen 1
@article{CRMECA_2008__336_7_606_0, author = {Anh Le van and Tai H.T. Nguyen}, title = {Une formulation variationnelle du probl\`eme de contact avec frottement de {Coulomb}}, journal = {Comptes Rendus. M\'ecanique}, pages = {606--611}, publisher = {Elsevier}, volume = {336}, number = {7}, year = {2008}, doi = {10.1016/j.crme.2008.05.003}, language = {fr}, }
Anh Le van; Tai H.T. Nguyen. Une formulation variationnelle du problème de contact avec frottement de Coulomb. Comptes Rendus. Mécanique, Volume 336 (2008) no. 7, pp. 606-611. doi : 10.1016/j.crme.2008.05.003. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2008.05.003/
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