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Poroelasticity Generalized for Polycrystalline Composites
Biot's original papers on poroelasticity were written with very well-characterized scenarios of solids containing simply described pores and homogeneous fluids. However, a common goal is to apply these theories to much more complex situations in (for example) the earth. Generalizations to layered poroelastic media have appeared and are relatively straightforward to derive and apply. A different type of generalization is considered here, wherein the original Biot theory may apply locally to anisotropic poroelastic grains, each having orthotropic elastic symmetry. But the key difference in this application takes the form of isotropic overall behavior due to random orientation of these individually orthotropic poroelastic fluid-saturated grains. Drained (freely flowing pore-fluid) results are relatively simple to derive. Undrained (trapped fluid) results for polycrystalline poroelastic systems are somewhat harder to obtain, but nevertheless perhaps easier than one might have expected for such complicated random systems.
Poroelasticity Generalized for Polycrystalline Composites
Biot's original papers on poroelasticity were written with very well-characterized scenarios of solids containing simply described pores and homogeneous fluids. However, a common goal is to apply these theories to much more complex situations in (for example) the earth. Generalizations to layered poroelastic media have appeared and are relatively straightforward to derive and apply. A different type of generalization is considered here, wherein the original Biot theory may apply locally to anisotropic poroelastic grains, each having orthotropic elastic symmetry. But the key difference in this application takes the form of isotropic overall behavior due to random orientation of these individually orthotropic poroelastic fluid-saturated grains. Drained (freely flowing pore-fluid) results are relatively simple to derive. Undrained (trapped fluid) results for polycrystalline poroelastic systems are somewhat harder to obtain, but nevertheless perhaps easier than one might have expected for such complicated random systems.
Poroelasticity Generalized for Polycrystalline Composites
Berryman, James G. (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 2351-2360
2013-06-18
Conference paper
Electronic Resource
English
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