The gradient displacement field of a micro-structured strong interface of a three-dimensional multi-material is regarded as a gradient-Young measure so that the stored strain energy of the material is defined as a bifunctional of displacement-Young measure state variables. We propose a new model by computing a suitable variational limit of this bifunctional when the thickness and the stiffness of the strong material are of order ε and respectively. The stored strain energy functional associated with the model in pure displacements living in a Sobolev space is obtained as the marginal map of the limit bifunctional. We also obtain a new asymptotic formulation in terms of Young measure state variable when considering the other marginal map.
Mots clés : Micro structures, Young measures, Variational convergences, Γ-convergence
@article{AIHPC_2010__27_2_447_0, author = {Bessoud, Anne Laure and Krasucki, Fran\c{c}oise and Michaille, G\'erard}, title = {A relaxation process for bifunctionals of {displacement-Young} measure state variables: {A} model of multi-material with micro-structured strong interface}, journal = {Annales de l'I.H.P. Analyse non lin\'eaire}, pages = {447--469}, publisher = {Elsevier}, volume = {27}, number = {2}, year = {2010}, doi = {10.1016/j.anihpc.2010.01.007}, mrnumber = {2595187}, zbl = {1184.49020}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.anihpc.2010.01.007/} }
TY - JOUR AU - Bessoud, Anne Laure AU - Krasucki, Françoise AU - Michaille, Gérard TI - A relaxation process for bifunctionals of displacement-Young measure state variables: A model of multi-material with micro-structured strong interface JO - Annales de l'I.H.P. Analyse non linéaire PY - 2010 SP - 447 EP - 469 VL - 27 IS - 2 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.anihpc.2010.01.007/ DO - 10.1016/j.anihpc.2010.01.007 LA - en ID - AIHPC_2010__27_2_447_0 ER -
%0 Journal Article %A Bessoud, Anne Laure %A Krasucki, Françoise %A Michaille, Gérard %T A relaxation process for bifunctionals of displacement-Young measure state variables: A model of multi-material with micro-structured strong interface %J Annales de l'I.H.P. Analyse non linéaire %D 2010 %P 447-469 %V 27 %N 2 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.anihpc.2010.01.007/ %R 10.1016/j.anihpc.2010.01.007 %G en %F AIHPC_2010__27_2_447_0
Bessoud, Anne Laure; Krasucki, Françoise; Michaille, Gérard. A relaxation process for bifunctionals of displacement-Young measure state variables: A model of multi-material with micro-structured strong interface. Annales de l'I.H.P. Analyse non linéaire, Tome 27 (2010) no. 2, pp. 447-469. doi : 10.1016/j.anihpc.2010.01.007. http://www.numdam.org/articles/10.1016/j.anihpc.2010.01.007/
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