Results 271 to 280 of about 2,392,562 (320)

Double‐porosity homogenization for perimeter functionals

Mathematical Methods in the Applied Sciences, 2009
AbstractIn this paper we are concerned with the overall description of interfacial energies in a composite environment where the local properties of the media are characterized by a large variation of the values of surface tension (double‐porosity homogenization).We prove some asymptotic results in terms of Γ‐convergence for a sequence of functionals ...
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Consolidation of a double-porosity medium

International Journal of Solids and Structures, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lewallen, K. T., Wang, H. F.
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Modelling doublets and double porosity

Quarterly Journal of Engineering Geology and Hydrogeology, 2010
Abstract A simple model has been developed as a scoping tool for transport between an injection well and an abstraction well pumping at the same rate (i.e. a doublet) in a fractured porous rock. This model is aimed primarily at the planning and preliminary interpretation of tracer tests and trial heat exchange using thermal doublets in the Chalk ...
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Love waves in double porosity media

Journal of Sound and Vibration, 2006
Abstract Based on the control equations for double-porosity media extended from Biot's theory, the propagation of Love waves is discussed in this paper. Dispersion equations of Love waves in double porosity medium are obtained by utilizing the usual assumption of Love waves in elastic solid with the coupling mass coefficient ρ 23 and coupling ...
Zhi-jun Dai, Zhen-Bang Kuang
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Plane harmonic waves in a thermoelastic solid with double porosity

, 2020
Propagation of time harmonic plane waves in an infinite thermoelastic solid medium with double porosity is studied in this paper. It is found that there may exist five basic waves consisting of four sets of coupled longitudinal waves and an independent ...
Dilbag Singh, Davinder Kumar, S. K. Tomar   +2 more
semanticscholar   +1 more source

Wave propagation in materials with double porosity

Mechanics of Materials, 2020
Abstract This paper is dedicated to propagation of waves with assigned length in a model describing the evolutionary behavior of materials with double porosity. Basic equations are considered for an isotropic and homogeneous material which occupies the entire three dimensional space. Wave solutions with assigned wavelength are sought.
Cătălin Galeş, Stan Chiriţă
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Double Porosity and Voids

2017
Our aim in this chapter is to describe a theory of nonlinear thermoelasticity where the body contains a double porosity system of voids. There is a void distribution associated to the macro pores, but additionally there is another void distribution due to the micro pores. This work was developed by Iesan & Quintanilla [? ].
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Multiphase double‐porosity homogenization for perimeter functionals

Mathematical Methods in the Applied Sciences, 2012
In this paper, we study a homogenization problem for perimeter energies in highly contrasted media; the analysis of the previous paper is carried out by removing the hypothesis that the perforated mediumRn ∖ Eis composed of disjoint compact components.
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On the linear theory of double porosity thermoelasticity under local thermal non-equilibrium

Journal of thermal stresses, 2019
In the present paper, the linear theory of thermoelasticity of double porosity materials under local thermal non-equilibrium is considered and the basic boundary value problems are investigated by using the boundary integral equation method (potential ...
M. Svanadze
semanticscholar   +1 more source

Acceleration waves in nonlinear double porosity elasticity

International Journal of Engineering Science, 2013
Abstract A model for a nonlinear elastic body with a double porosity structure is proposed. We generalize previous work which has concentrated mainly on linear double porosity elastic materials or has had a particular structure in the nonlinearities. Here we allow the strain energy function and the effective permeabilities associated to the macro and
GENTILE, MAURIZIO, B. Straughan
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