A Novel approach for modeling mechanical behavior of porous media
Küçük Resim Yok
Tarih
2011
Yazarlar
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Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A multi-scale novel homogenization technique is introduced to model mechanical behavior of open-cell porous media. The proposed method consists of primarily four components. The first component is based on two assumptions. First, a random porous structure can be approximated by superimposing regular grids that are interacting with each other at "junction" points. The second component consists of replacing each grid by an equivalent continuum. The forces at the junction points are also replaced by interacting body forces. The third component is to represent the equivalent media by single medium by expressing the "average stresses" in the elastic mixture in terms of the "average displacement" It is discussed how to extract the information about the geometrical and mechanical properties of the grids by comparing the analytical and experimental data for the dispersion of waves propagating in porous medium.
Açıklama
Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites - 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011
Anahtar Kelimeler
Dispersion, Equivalent continuum, Gradient elasticity, Porous media, Wave propagation, Average stress, Body forces, Equivalent continuum, Experimental data, Gradient elasticity, Homogenization techniques, Junction point, Mechanical behavior, Multiscales, Open-cell, Porous medium, Porous structures, Regular grids, Single medium, Third component, Dispersion (waves), Dispersions, Elasticity, Films, Homogenization method, Mechanical engineering, Nanotechnology, Porous materials, Stresses, Wave propagation, Nanocomposite films, Dispersion, Equivalent continuum, Gradient elasticity, Porous media, Wave propagation, Average stress, Body forces, Equivalent continuum, Experimental data, Gradient elasticity, Homogenization techniques, Junction point, Mechanical behavior, Multiscales, Open-cell, Porous medium, Porous structures, Regular grids, Single medium, Third component, Dispersion (waves), Dispersions, Elasticity, Films, Homogenization method, Mechanical engineering, Nanotechnology, Porous materials, Stresses, Wave propagation, Nanocomposite films
Kaynak
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Cilt
1
