TY - GEN
T1 - A coupled-volume approach to the multi-scale modelling of quasi-brittle materials
AU - Gitman, I. M.
AU - Askes, H.
AU - Sluys, L. J.
PY - 2007
Y1 - 2007
N2 - The hierarchical multi-scale procedure is analysed in this paper. The local multi-scale model has been studied with respect to the macro-level mesh dependency and mesolevel size dependency. The material behaviour has been analysed in case of linear-elasticity, hardening and softening. Though the results show no dependency in cases of linear-elasticity and hardening, the strong dependency on both macro-level mesh and meso-level size in case of softening has been found. In order to eliminate both macro-level mesh dependency and mesolevel size dependency, a new multi-scale procedure has been proposed. This procedure uniquely links the numerical parameter (macro-level mesh size) and model parameter (meso-level size). The results of this coupled-volume multi-scale model show no dependency on the macro-level mesh or meso-level size in any regimes.
AB - The hierarchical multi-scale procedure is analysed in this paper. The local multi-scale model has been studied with respect to the macro-level mesh dependency and mesolevel size dependency. The material behaviour has been analysed in case of linear-elasticity, hardening and softening. Though the results show no dependency in cases of linear-elasticity and hardening, the strong dependency on both macro-level mesh and meso-level size in case of softening has been found. In order to eliminate both macro-level mesh dependency and mesolevel size dependency, a new multi-scale procedure has been proposed. This procedure uniquely links the numerical parameter (macro-level mesh size) and model parameter (meso-level size). The results of this coupled-volume multi-scale model show no dependency on the macro-level mesh or meso-level size in any regimes.
KW - Coupled-volume approach
KW - Multi-scale modelling
KW - Pre-/post-peak behaviour
KW - n/a OA procedure
UR - http://www.scopus.com/inward/record.url?scp=38349033553&partnerID=8YFLogxK
U2 - 10.4028/0-87849-428-6.2582
DO - 10.4028/0-87849-428-6.2582
M3 - Conference contribution
AN - SCOPUS:38349033553
SN - 0878494286
SN - 9780878494286
T3 - Materials Science Forum
SP - 2582
EP - 2587
BT - Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
PB - Trans Tech Publications Ltd
T2 - 5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
Y2 - 4 July 2006 through 8 July 2006
ER -