Sound propagation in isotropically and uni-axially compressed cohesive, frictional granular solids

Share/Save/Bookmark

Mouraille, O. and Herbst, O. and Luding, S. (2009) Sound propagation in isotropically and uni-axially compressed cohesive, frictional granular solids. Engineering fracture mechanics, 76 (6). pp. 781-792. ISSN 0013-7944

[img]PDF
Restricted to UT campus only
: Request a copy
827Kb
Abstract:Using an advanced contact model in DEM simulations, involving elasto-plasticity, adhesion, and friction, pressure-sintered tablets are formed from primary particles and prepared for unconfined tests. Sound propagation in such packings is studied under various friction and adhesion conditions. Small differences can be explained by differences in the structure that are due to the sensitivity of the packing on the contact properties during preparation history. In some cases the signals show unexpected propagation behaviour, but the power-spectra are similar for all values of adhesion and friction tested. Furthermore, one of these tablets is compressed uni-axially and under unconfined conditions and the sound propagation characteristics are examined at different strains: (i) in the elastic regime, (ii) during failure, and (iii) during critical flow: the results vary astonishingly little for packings at different externally applied strains.
Item Type:Article
Copyright:© 2009 Elsevier
Faculty:
Engineering Technology (CTW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/80147
Official URL:http://dx.doi.org/10.1016/j.engfracmech.2008.09.001
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 248815