000015347 001__ 15347
000015347 005__ 20161115100219.0
000015347 04107 $$aeng
000015347 046__ $$k2016-08-21
000015347 100__ $$aLegarth, Brian
000015347 24500 $$aPlastic size-effects on a mode I loaded crack

000015347 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015347 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015347 506__ $$arestricted
000015347 520__ $$2eng$$aCrack growth is investigated numerically using the strain-gradient plasticity theory of Gudmundson[1] in a plane small-strain visco-plastic formulation as adopted by Legarth and Niordson[2]. The J-integral[4] is evaluated along several paths showing that it is path independent up to the very near region of the cohesive crack tip, and the size of this region scales with the material length parameter of the gradient model in addition to the size of the fracture process zone. The distributions of the effective plastic strain and stress are also shown for both conventional and gradient enhanced cases. At the same amount of crack growth is the plastic strain level higher for the gradient enhanced case due to contribution from the gradients.

000015347 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015347 653__ $$a

000015347 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015347 720__ $$aLegarth, Brian
000015347 8560_ $$ffischerc@itam.cas.cz
000015347 8564_ $$s107580$$uhttps://invenio.itam.cas.cz/record/15347/files/TS.SM10-2.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2478, code TS.SM10-2.04
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000015347 962__ $$r13812
000015347 980__ $$aPAPER