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Bridging techniques in a multi-scale modeling of pattern formation

Abstract : Bridging techniques between microscopic and macroscopic models are discussed in the case of wrinkling analysis. The considered macroscopic models are related to envelope equations of Ginzburg-Landau type, but generally, they are not valid up to the boundary. To this end, a multi-scale approach is considered: the reduced model is implemented in the bulk while the full model is applied near the boundary and these two models are coupled with the Arlequin method (Ben Dhia, 1998). This paper focuses on the definition of the coupling model and the transition between two scales. Especially, a new nonlocal bridging technique is presented and compared with another recent one (Hu et al., 2011). The present method can also be seen as a guide for coupling techniques involving other reduced order models.
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https://hal.univ-lorraine.fr/hal-01503453
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Submitted on : Friday, April 7, 2017 - 10:24:26 AM
Last modification on : Tuesday, October 19, 2021 - 11:46:26 AM

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Fan Xu, Heng Hu, Michel Potier-Ferry, Salim Belouettar. Bridging techniques in a multi-scale modeling of pattern formation. International Journal of Solids and Structures, Elsevier, 2014, 51 (18), pp.3119-3134. ⟨10.1016/j.ijsolstr.2014.05.011⟩. ⟨hal-01503453⟩

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