The paper deals with a complex thermomechanical description of a layered structure consisting of three parts: the elastic layer, the porous substrate and the viscoelastic thin layer in between them. The layers are assumed to be isotropic and homogeneous but the substrate has nonlinear structure: the porosity disappears towards the surface. We try to answer the following question: how the viscoelastic layer behaves during loading-unloading processes . The most interesting are the tangent external loadings applied to the outer surface of the structure. We also take into consideration the temperature influence on processes and properties of the structure, particularly on those related to the viscoelastic layer . The distribution of temperature and thermal stresses for different time of the the processes has been also calculated.
Thermomecanical properties of viscoelasto-porous layered structure
L. Restuccia
1999-01-01
Abstract
The paper deals with a complex thermomechanical description of a layered structure consisting of three parts: the elastic layer, the porous substrate and the viscoelastic thin layer in between them. The layers are assumed to be isotropic and homogeneous but the substrate has nonlinear structure: the porosity disappears towards the surface. We try to answer the following question: how the viscoelastic layer behaves during loading-unloading processes . The most interesting are the tangent external loadings applied to the outer surface of the structure. We also take into consideration the temperature influence on processes and properties of the structure, particularly on those related to the viscoelastic layer . The distribution of temperature and thermal stresses for different time of the the processes has been also calculated.Pubblicazioni consigliate
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