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Adaptive computational meso-macro-scale modeling of elastic composites

Fredrik Larsson (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Kenneth Runesson (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik)
Computer Methods in Applied Mechanics and Engineering (0045-7825). Vol. 195 (2006), 4-6, p. 324-338.
[Artikel, refereegranskad vetenskaplig]

We consider combined material model and FE-mesh adaptivity in the context of computational meso-macro-scale modeling (CMM), whereby the coupling between different geometrical scales is taken into account. The macro-scale model is then replaced by the homogenized response of a representative volume element (RVE). In practice, the RVE is analyzed as a "small-scale" finite element problem, which is solved for each (Gauss) point in the domain. The high cost of this strategy clearly motivates the use of adaptive techniques based on a posteriori error estimates for the combined model and discretization error, whereby the solution of an appropriate dual problem is utilized. The suggested adaptive procedure is applied to a particle/matrix composite with hyperelastic constituents.



Denna post skapades 2006-01-19. Senast ändrad 2015-06-12.
CPL Pubid: 9624

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Material- och beräkningsmekanik (2005-2017)

Ämnesområden

Fastkroppsmekanik

Chalmers infrastruktur