Multiscale analysis of damage using dual and primal domain decomposition techniques

Multiscale analysis of damage using dual and primal domain decomposition techniques

Lloberas-Valls, O.
Everdij, F.P.X.
Rixen, D.J.
Simone, A.
Sluys, L.J.

Civil Engineering and Geosciences

Structural Engineering

2014-07-25

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.

Multiscale analysis
dual and primal domain decomposition methods
strain localization
strain softening

http://resolver.tudelft.nl/uuid:f9a9628a-aab3-40d8-9da8-bcdacd76f441

CIMNE

978-84-942844-7-2

Proceedings - WCCM XI: 11th World Congress on Computational Mechanics; ECCM V: 5th European Conference on Computational Mechanics; ECFD VI: 6th European Conference on Computational Fluid Dynamics, Barcelona, Spain, 20-25 July 2014

Institutional Repository

conference paper

(c) Lloberas-Valls, O.
Everdij, F.P.X.
Rixen, D.J.
Simone, A.
Sluys, L.J.