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An implicit constitutive relation for describing the small strain response of porous elastic solids whose material moduli are dependent on the density

Rajagopal, KR Sevostianov, Igor

Mathematics and mechanics of solids, 2021-08, Vol.26 (8), p.1138-1146 [Periódico revisado por pares]

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Título:
An implicit constitutive relation for describing the small strain response of porous elastic solids whose material moduli are dependent on the density
Autor: Rajagopal, KR
Sevostianov, Igor
É parte de: Mathematics and mechanics of solids, 2021-08, Vol.26 (8), p.1138-1146
Descrição: In this short note, we develop a constitutive relation that is linear in both the Cauchy stress and the linearized strain, by linearizing implicit constitutive relations between the stress and the deformation gradient that have been put into place to describe the response of elastic bodies (Rajagopal, KR. On implicit constitutive theories. Applications of Mathematics 2003; 28: 279–319), by assuming that the displacement gradient is small. These implicit equations include the classical linearized elastic constitutive approximation as well as some classes of constitutive relations that imply limiting strain in tension, as special subclasses. Moreover, the constitutive relations that are developed allow the material moduli to depend on the density; thus, they can be used to describe the response of porous materials, such as porous metals, bone, rocks, and concrete undergoing small deformations.
Editor: London, England: SAGE Publications
Idioma: Inglês

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