000008876 001__ 8876
000008876 005__ 20141204083528.0
000008876 04107 $$aeng
000008876 046__ $$k12/05/2014
000008876 100__ $$aŠebek, F.
000008876 24500 $$aLOCALIZATION PROBLEM OF COUPLED DUCTILE FAILURE MODELS COMPARED TO UNCOUPLED ONES

000008876 24630 $$n20.$$pEngineering Mechanics 2014
000008876 260__ $$bBrno University of Technology- Institute of Solid Mechanics, Mechatronics and Biomechanics
000008876 506__ $$arestricted
000008876 520__ $$2eng$$aComparison of accumulated damage field of coupled and uncoupled ductile damage models together with history of variables used in calibration process is presented in this paper. Using a non-linear damage accumulation in a local point of view, ductile failure criterion proposed by Xue is adopted and implemented into the Abaqus/Explicit via the user subroutine VUMAT for both types of models. Significant difference in localization between the coupled and uncoupled model is shown. The localization effect generally occurs when coupled models are used. One of the widespread practices to handle it is to use the non-local approach. In the other hand, we would not be able to predict a slant fracture without a certain degree of localization as shown in presented paper. Finally, the aluminum alloy 2024-T351 was examined.

000008876 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000008876 653__ $$aLocalization, Ductile, Failure, Damage, Explicit.

000008876 7112_ $$aEngineering Mechanics 2014$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2014
000008876 720__ $$aŠebek, F.$$iKubík, P.$$iPetruška, J.
000008876 8560_ $$ffischerc@itam.cas.cz
000008876 8564_ $$s643636$$uhttps://invenio.itam.cas.cz/record/8876/files/129-Sebek-CD.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 129.
000008876 962__ $$r70
000008876 980__ $$aPAPER