期刊
TECHNOLOGIES
卷 9, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/technologies9010017
关键词
interfaces; asymptotic analysis; coupled thermoelasticity
This work proposes new interface conditions between the layers of a three-dimensional composite structure in the framework of coupled thermoelasticity, presenting soft and hard thermoelastic interface models.
This work proposes new interface conditions between the layers of a three-dimensional composite structure in the framework of coupled thermoelasticity. More precisely, the mechanical behavior of two linear isotropic thermoelastic solids, bonded together by a thin layer, constituted of a linear isotropic thermoelastic material, is studied by means of an asymptotic analysis. After defining a small parameter s, which tends to zero, associated with the thickness and constitutive coefficients of the intermediate layer, two different limit models and their associated limit problems, the so-called soft and hard thermoelastic interface models, are characterized. The asymptotic expansion method is reviewed by taking into account the effect of higher-order terms and defining a generalized thermoelastic interface law which comprises the above aforementioned models, as presented previously. A numerical example is presented to show the efficiency of the proposed methodology, based on a finite element approach developed previously.
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