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PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON PARALLEL, DISTRIBUTED, GRID AND CLOUD COMPUTING FOR ENGINEERING
Edited by: P. Iványi and B.H.V. Topping
A Three-Scale Domain Decomposition Method for the Simulation of Delamination and Buckling Interaction in Composites
K. Saavedra, O. Allix and P. Gosselet
LMT Cachan (ENS Cachan/CNRS/UPMC/PRES UniverSud Paris), Cachan, France
K. Saavedra, O. Allix, P. Gosselet, "A Three-Scale Domain Decomposition Method for the Simulation of Delamination and Buckling Interaction in Composites", in P. Iványi, B.H.V. Topping, (Editors), "Proceedings of the Second International Conference on Parallel, Distributed, Grid and Cloud Computing for Engineering", Civil-Comp Press, Stirlingshire, UK, Paper 10, 2011. doi:10.4203/ccp.95.10
Keywords: delamination, buckling, multiscale computation, domain decomposition method, LaTIn solver.
The LaTIn strategy  splits the structure into volume substructures separated by surface interfaces which both are mechanical entities. Consequently, the reference problem resulting from the chosen mesomodel is substructured naturally, and the cohesive interfaces of the model are handled within the interfaces of the domain decomposition. For computational efficiency, three scales are introduced to solve the problem:
This framework is highly user controlled. In order to conduct our computations, the following parameters have to be established:
These improvements make the multiscale analysis of slender structures subject to buckling possible with an efficient treatment of delamination.
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