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A Poromechanics Approach to Predict the Effective Swelling Behavior of Cellular Materials
The anisotropic swelling behavior of cellular solids is investigated with a poromechanics approach. The general expression for the macroscopically observable free swelling strain is derived by upscaling the constitutive equations of a microscopic poroelastic medium. The swelling coefficient is dependent on stiffness, Biot coefficients and Biot modulus. We found that the anisotropy in swelling behavior of honeycomb-like cellular materials with low relative density, which is observed experimentally for earlywood, can be related to the anisotropy of elastic properties at the cell wall level and the geometry of honeycombs. The proposed approach provides a more physically relevant description of swelling behavior which originates from the coupled interaction of fluid and solid within the porous cell walls of cellular materials like wood.
A Poromechanics Approach to Predict the Effective Swelling Behavior of Cellular Materials
The anisotropic swelling behavior of cellular solids is investigated with a poromechanics approach. The general expression for the macroscopically observable free swelling strain is derived by upscaling the constitutive equations of a microscopic poroelastic medium. The swelling coefficient is dependent on stiffness, Biot coefficients and Biot modulus. We found that the anisotropy in swelling behavior of honeycomb-like cellular materials with low relative density, which is observed experimentally for earlywood, can be related to the anisotropy of elastic properties at the cell wall level and the geometry of honeycombs. The proposed approach provides a more physically relevant description of swelling behavior which originates from the coupled interaction of fluid and solid within the porous cell walls of cellular materials like wood.
A Poromechanics Approach to Predict the Effective Swelling Behavior of Cellular Materials
Rafsanjani, Ahmad (author) / Derome, Dominique (author) / Carmeliet, Jan (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 739-748
2013-06-18
Conference paper
Electronic Resource
English
Poromechanics of freezing materials
| British Library Online Contents | 2005
| UB Braunschweig | 2004
| TIBKAT | 2004