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  • The contribution describes experiments and numerical modelling performed to deal with ductile tearing for RAFM steel Eurofer97. Based on results of tensile testing and results of FEA a micromechanical model of ductile fracture Gurson-Tvergaard-Needleman (GTN) was calibrated. This model was then applied for simulation of measured J-R curve. To successfully simulate J-R curve by GTN model, crack length increment was separated into increment created by crack tip blunting (stretch width zone increment) and by ductile tearing itself. J-R curve corrected to crack tip blunting was satisfactory described by GTN model choosing suitable element size in the region of crack propagation.
  • The contribution describes experiments and numerical modelling performed to deal with ductile tearing for RAFM steel Eurofer97. Based on results of tensile testing and results of FEA a micromechanical model of ductile fracture Gurson-Tvergaard-Needleman (GTN) was calibrated. This model was then applied for simulation of measured J-R curve. To successfully simulate J-R curve by GTN model, crack length increment was separated into increment created by crack tip blunting (stretch width zone increment) and by ductile tearing itself. J-R curve corrected to crack tip blunting was satisfactory described by GTN model choosing suitable element size in the region of crack propagation. (en)
Title
  • Modeling of ductile tearing for RAFM steel Eurofer97
  • Modeling of ductile tearing for RAFM steel Eurofer97 (en)
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  • Modeling of ductile tearing for RAFM steel Eurofer97
  • Modeling of ductile tearing for RAFM steel Eurofer97 (en)
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  • RIV/68081723:_____/14:00435433!RIV15-AV0-68081723
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  • I, P(ED1.1.00/02.0068), P(EE2.3.20.0197)
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  • 29815
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  • RIV/68081723:_____/14:00435433
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  • Eurofer97; ductile fracture; J-R curve; KLST specimen; GTN model (en)
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  • [FA6DB6CCA452]
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  • Trondheim
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  • Amsterdam
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  • 20th European Conference on Fracture
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  • Dlouhý, Ivo
  • Hadraba, Hynek
  • Stratil, Luděk
  • Šiška, Filip
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issn
  • 2211-8128
number of pages
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  • Elsevier
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