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On the strong ellipticity for orthotropic micropolar elastic bodies in a plane strain state
Authors:Francesca PassarellaVincenzo Tibullo  Vittorio Zampoli
Institution:Dipartimento di Ingegneria Elettronica e Ingegneria Informatica, Università di Salerno, Italy
Abstract:In the present paper we consider an orthotropic micropolar elastic material subject to a state of plane strain. In this context, we establish necessary and sufficient conditions for the strong ellipticity of constitutive coefficients. Furthermore, we study existence of progressive plane waves under the strong ellipticity conditions previously determined. Finally, we detail the results obtained for a specific class of materials related to tetragonal systems.
Keywords:Strong ellipticity  Orthotropic micropolar materials  Progressive plane waves
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