000015134 001__ 15134
000015134 005__ 20161115100212.0
000015134 04107 $$aeng
000015134 046__ $$k2016-08-21
000015134 100__ $$aDe Geus, Tom
000015134 24500 $$aSystematic analysis of fracture in two-phase materials at all stages

000015134 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015134 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015134 506__ $$arestricted
000015134 520__ $$2eng$$aAlthough multi-phase materials are widely used, the micro-mechanisms dominating fracture are only partially understood. This [Wtematically investigates this topic using computational models. An idealized microstructure is employed wherein a brittle hard phase and a ductile soft phase are randomly distributed. The idealization facilitates transparent analyses with well controlled variations. Three topics are considered: the competition between fracture initiation in either of the phases, and the effect of the local phase distribution on fracture initiation and on propagation. The results indicate that, depending on the macroscopic stress state, one of the phases dominates the fracture initiation. The local phase distribution determines where fracture initiates. Regions of hard phase in the tensile direction intersected by bands of the soft phase in the shear directions promote damage for both mechanisms. Voids then link-up through the soft phase, strongly influenced by the amount of hard phase and the phase contrast.

000015134 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015134 653__ $$a

000015134 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015134 720__ $$aDe Geus, Tom
000015134 8560_ $$ffischerc@itam.cas.cz
000015134 8564_ $$s191094$$uhttps://invenio.itam.cas.cz/record/15134/files/TS.SM03-1.05.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1814, code TS.SM03-1.05
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000015134 962__ $$r13812
000015134 980__ $$aPAPER