Multiscale analysis of damage using dual and primal domain decomposition techniques
Document typeConference report
PublisherCentre Internacional de Mètodes Numèrics en Enginyeria (CIMNE)
Rights accessOpen Access
European Commisision's projectCOMP-DES-MAT - Advanced tools for computational design of engineering materials (EC-FP7-320815)
In this contribution, dual and primal domain decomposition techniques are studied for the multiscale analysis of failure in quasi-brittle materials. The multiscale strategy essentially consists in decomposing the structure into a number of nonoverlapping domains and considering a refined spatial resolution where needed. In multiscale analysis of damage, the spatial refinement is performed where damage nucleation and propagation take place. The domain decomposition approach turns to be a computationally cheaper alternative to the direct numerical solution in which a fine scale model is considered throughout the complete sample. Dual and primal domain decomposition techniques are appropriate for such concurrent multiscale analyses and provide identical results. Parallel scalability of the multiscale analysis is studied using a moderate number of processors and a parallel direct solver for the system obtained through the assembly of all domains.
CitationLloberas-Valls, O. [et al.]. Multiscale analysis of damage using dual and primal domain decomposition techniques. A: World Congress on Computational Mechanics. "11th. World Congress on Computational Mechanics". Barcelona: Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014, p. 3524-3534.