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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU104735" target="_blank" >RIV/00216305:26210/13:PU104735 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/13:00421044
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
A calibration of Gurson-Tvergaard-Needleman micromechanical model of ductile fracture
Original language 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 thesteel 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 usin
Czech name
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Czech description
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Project
<a href="/en/project/EE2.3.20.0197" target="_blank" >EE2.3.20.0197: Multidisciplinary team in materials design and its involvement into international cooperation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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