Unified Description of Aging and Rate Effects in Yield of Glassy Solids

TitleUnified Description of Aging and Rate Effects in Yield of Glassy Solids
Publication TypeJournal Article
Year of Publication2005
AuthorsRottler, Jörg, and Mark O. Robbins
JournalPhysical Review Letters
Date Publishednov
AbstractThe competing effects of slow structural relaxations (aging) and deformation at constant strain rate on the shear yield stress τy of simple model glasses are examined using molecular simulations. At long times, aging leads to a logarithmic increase in density and τy. The yield stress also rises logarithmically with rate but shows a sharp transition in slope at a rate that decreases with increasing age. We present a simple phenomenological model that includes both intrinsic rate dependence and the change in properties with the total age of the system at yield. As predicted by the model, all data for each temperature collapse onto a universal curve.
Website development by Checkmark Media. Designed by Armada.

a place of mind, The University of British Columbia

Faculty of Science
Department of Physics and Astronomy
6224 Agricultural Road
Vancouver, BC V6T 1Z1
Tel 604.822.3853
Fax 604.822.5324

Emergency Procedures | Accessibility | Contact UBC | © Copyright The University of British Columbia