An asymptotic derivation of a general imperfect interface law for linear multiphysics composites. (15th December 2019)

• Record Type: Journal Article
• Authors: Serpilli, M.; Rizzoni, R.; Lebon, F.; Dumont, S.
• Is Part Of: International journal of solids and structures. Volume 180/181(2019)
• Page Start: 97
• Page End: 107
• Publication Date: 2019-12-15
• Subjects: Asymptotic analysis -- Interfaces -- Multiphysics materials; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2019.07.014
• Languages: English
• ISSNs: 0020-7683

Abstract

Abstract: The paper is concerned with the derivation of a general imperfect interface law in a linear multiphysics framework for a composite, constituted by two solids, separated by a thin adhesive layer. The analysis is performed by means of the asymptotic expansions technique. After defining a small parameter ε, which will tend to zero, associated with the thickness and the constitutive coefficients of the intermediate layer, we characterize three different limit models and their associated limit problems: the soft interface model, in which the constitutive coefficients depend linearly on ε; the hard interface model, in which the constitutive properties are independent of ε; the rigid interface model, in which they depend on 1 ε . The asymptotic expansion method is reviewed by taking into account the effect of higher order terms and by defining a general multiphysics interface law which comprises the above aforementioned models.