About: A calibration of Gurson-Tvergaard-Needleman micromechanical model of ductile fracture

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About: A calibration of Gurson-Tvergaard-Needleman micromechanical model of ductile fracture Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Fracture mechanics characteristics of ductile fracture often depend on geometry and size of specimens. A micromechanical modelling of material damage proposes a tool for treatment of geometry and size effects in fracture mechanics. Application of micromechanical model for certain material requires a calibration of model parameters. This contribution presents the calibration procedure of Gurson-Tvergaard-Needleman model of ductile fracture for Eurofer97 steel. The identification of ductile damage of the steel and its tensile properties at various level of stress triaxiality by testing smooth and notched bars were determined in the previous study. The calibration procedure was performed by hybrid method as a combination of FEA simulations of tensile tests and fractography analyses. The Gurson-Tvergaard-Needleman model performance is greatly influenced by true stress-true strain curve of the material. It was verified that derivation of true stress-true strain curve of the material by using of multiple li Fracture mechanics characteristics of ductile fracture often depend on geometry and size of specimens. A micromechanical modelling of material damage proposes a tool for treatment of geometry and size effects in fracture mechanics. Application of micromechanical model for certain material requires a calibration of model parameters. This contribution presents the calibration procedure of Gurson-Tvergaard-Needleman model of ductile fracture for Eurofer97 steel. The identification of ductile damage of the steel and its tensile properties at various level of stress triaxiality by testing smooth and notched bars were determined in the previous study. The calibration procedure was performed by hybrid method as a combination of FEA simulations of tensile tests and fractography analyses. The Gurson-Tvergaard-Needleman model performance is greatly influenced by true stress-true strain curve of the material. It was verified that derivation of true stress-true strain curve of the material by using of multiple li (en)
Title	A calibration of Gurson-Tvergaard-Needleman micromechanical model of ductile fracture A calibration of Gurson-Tvergaard-Needleman micromechanical model of ductile fracture (en)
skos:prefLabel	A calibration of Gurson-Tvergaard-Needleman micromechanical model of ductile fracture A calibration of Gurson-Tvergaard-Needleman micromechanical model of ductile fracture (en)
skos:notation	RIV/00216305:26210/13:PU104735!RIV14-MSM-26210___
http://linked.open...avai/predkladatel	Fakulta strojního inženýrství
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(EE2.3.20.0197), S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Hadraba, Hynek Dlouhý, Ivo Stratil, Luděk
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	58451
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/13:PU104735
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ductile fracture, GTN model, void nucleation, MLR model, Eurofer97 (en)
http://linked.open.../riv/klicoveSlovo	MLR model ductile fracture Eurofer97 GTN model void nucleation
http://linked.open...ontrolniKodProRIV	[5E9AEA123981]
http://linked.open...v/mistoKonaniAkce	Svratka
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	Engineering mechanics 2013
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Multidisciplinary team in materials design and its involvement into international cooperation
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Dlouhý, Ivo Hadraba, Hynek Stratil, Luděk Šiška, Filip
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2013-05-13 (xsd:date)
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Ústav termomechaniky AV ČR
https://schema.org/isbn	978-80-87012-47-5
http://localhost/t...ganizacniJednotka	26210

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