Behavior of piezoelectric layered composites with mechanical and electrical non-uniform imperfect contacts
Résumé
In this work, the two scales asymptotic homogenization method (AHM) is applied for determining the effective coefficients of laminated piezo-electric composite with periodic structure under non-uniform electrical and mechanical imperfect contact conditions. The analytical expressions of the local problems and the effective coefficients as result of the AHM are explicitly described. The constituent materials have properties belonging to 2 mm symmetry point group. Numerical values of the effective coefficients are reported and compared with limit cases, where perfect and uniform imperfect contact conditions are considered. Good agreements are found for these comparisons. Hence, the effect of the non-uniform imperfect contact conditions on the effective coefficients can be analyzed. Keywords Piezoelectric laminate composite Á Asymptotic homogenization method Á Non-uniform imperfect contact Á 2 mm material symmetry
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