000015348 001__ 15348
000015348 005__ 20161115100219.0
000015348 04107 $$aeng
000015348 046__ $$k2016-08-21
000015348 100__ $$aMartínez-Pañeda, Emilio
000015348 24500 $$aStrain gradient plasticity beyond micron-scale applications: Fracture and damage modelization

000015348 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015348 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015348 506__ $$arestricted
000015348 520__ $$2eng$$aIn this work a general framework for damage and fracture assessment accounting for the role of geometrically necessary dislocations (GNDs) is provided. Crack tip fields are characterized, within both infinitesimal and finite deformation theories, by means of different strain gradient plasticity (SGP) formulations and their finite element implementation. Moreover, the impact of SGP theories on fracture and damage problems is further assessed by modelling several scenarios of particular interest: hydrogen diffusion towards the fracture process zone, environmentally assisted cracking, crack growth initiation and subsequent resistance and probabilistic-based cleavage fracture assessment. Results show a strong influence of GNDs, revealing the need to incorporate its influence in continuum models in order to adequately characterize behaviour at the small scales involved in crack tip deformation.

000015348 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015348 653__ $$a

000015348 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015348 720__ $$aMartínez-Pañeda, Emilio
000015348 8560_ $$ffischerc@itam.cas.cz
000015348 8564_ $$s275290$$uhttps://invenio.itam.cas.cz/record/15348/files/TS.SM10-2.05.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2480, code TS.SM10-2.05
.
000015348 962__ $$r13812
000015348 980__ $$aPAPER