000015187 001__ 15187
000015187 005__ 20161115100214.0
000015187 04107 $$aeng
000015187 046__ $$k2016-08-21
000015187 100__ $$aLiu, Zhigang
000015187 24500 $$aOn the transition from void collapse to void coalescence

000015187 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015187 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015187 506__ $$arestricted
000015187 520__ $$2eng$$aVoid behavior of a ductile solid subjected to deformations with low or negative triaxiality (void collapse) is different from that with high triaxiality (void coalescence). We examine the critical strain-to-onset of void collapse and void coalescence via homogenizationbased micromechanics analyses. Cells are subjected to a full range of the Lode parameter L and triaxiality T are obtained. Numerical results show that the loci are discontinuous functions of T , with the existences of transition zone separating loci of strain-to-onset of void collapse and that of void coalescence; within the zones neither of the two void behaviors is predicted at low triaxiality. Stress state dependence of void collapse and void coalescence are investigated and presented in the form of charts, analogous to phase diagrams; they illustrate and distinguish clearly, in the T − L space, regions in which void collapse, void coalescence and neither of the two are possible.

000015187 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015187 653__ $$a

000015187 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015187 720__ $$aLiu, Zhigang
000015187 8560_ $$ffischerc@itam.cas.cz
000015187 8564_ $$s84214$$uhttps://invenio.itam.cas.cz/record/15187/files/TS.SM05-10.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2025, code TS.SM05-10.04
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000015187 962__ $$r13812
000015187 980__ $$aPAPER