A NOVEL APPROACH FOR MODELING MECHANICAL BEHAVIOR OF POROUS MEDIA
Küçük Resim Yok
Tarih
2011
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Crc Press-Taylor & Francis Group
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
NSTI Nanotechnology Conference and Expo -- JUN 13-16, 2011 -- Boston, MA
Anahtar Kelimeler
porous media, equivalent continuum, gradient elasticity, wave propagation, dispersion
Kaynak
Nanotechnology 2011: Advanced Materials, Cnts, Particles, Films and Composites, Nsti-Nanotech 2011, Vol 1
WoS Q Değeri
N/A
