000015233 001__ 15233
000015233 005__ 20161115100215.0
000015233 04107 $$aeng
000015233 046__ $$k2016-08-21
000015233 100__ $$aKaliske, Michael
000015233 24500 $$aApproaches for dynamic fracture simulation: r-adaptive material force and phase-field method

000015233 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015233 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015233 506__ $$arestricted
000015233 520__ $$2eng$$aThe numerical crack approximation in finite element simulations may be categorized in discrete and smeared approaches. The discrete approach models a crack as free edges in the meshing with an actual separation of the elements along the crack surface. The smeared approach represents the crack by a modification of the relation of stresses and strains in the elements in the vicinity of the crack. This contribution presents the application of state of the art approaches of each category to dynamic fracture simulations and a detailed comparison of both methods by evaluation of the simulation results. In respect of the discrete approaches, an r-adaptive node duplication technique triggered by the evaluation of the “material force“ at the crack tip is introduced. The smeared approach employs the phase-field method. Both methods are presented and applied to characteristic dynamic fracture examples for evaluation and comparison of their capabilities.

000015233 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015233 653__ $$a

000015233 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015233 720__ $$aKaliske, Michael
000015233 8560_ $$ffischerc@itam.cas.cz
000015233 8564_ $$s182476$$uhttps://invenio.itam.cas.cz/record/15233/files/TS.SM05-9.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2115, code TS.SM05-9.04
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000015233 962__ $$r13812
000015233 980__ $$aPAPER