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Títol:
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Multiscale analysis of damage using dual and primal domain decomposition techniques
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Autor/a:
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Lloberas Valls, Oriol; Everdij, Frank P. X.; Rixen, Daniel J.; Simone, Angelo; Sluys, Lambertus J.
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Abstract:
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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. |
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Matèries:
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica
-Àrees temàtiques de la UPC::Enginyeria dels materials
-Multiscale modeling
-Fracture mechanics--Mathematical models
-Multiscale analysis
-dual and primal domain decomposition methods
-strain
localization
-strain softening
-COMP-DES-MAT Project
-COMPDESMAT Project
-Materials -- Models matemàtics |
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Drets:
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Tipus de document:
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Article - Versió publicada
Objecte de conferència |
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Publicat per:
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Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE)
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Compartir:
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