Abstract : In the present work, the relaxation of several wood powders has been investigated in an annular shear cell. It is found that the slow logarithmic relaxation commonly observed for various materials including granular materials is interrupted by large events. Their frequency and amplitude are investigated with respect to particle size and stress-history by measuring stresses and strain. These large events during the relaxation appear to be controlled by the deformation. The coarser the particles are, the bigger is the deformation of the powder bed between two fast relaxation events and during the event.
https://hal-mines-albi.archives-ouvertes.fr/hal-03309045 Contributor : IMT Mines Albi IMT Mines AlbiConnect in order to contact the contributor Submitted on : Friday, July 30, 2021 - 9:09:35 AM Last modification on : Wednesday, April 6, 2022 - 5:14:08 PM Long-term archiving on: : Sunday, October 31, 2021 - 6:05:18 PM