About: Calibration of fracture locus in scope of uncoupled elastic–plastic-ductile fracture material models     Goto   Sponge   NotDistinct   Permalink

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Description
  • This paper describes the calibration process for the uncoupled material model of ductile damage designed by Bai and Wierzbicki. This problem has been investigated within the project “Identification of ductile damage parameters for nuclear facilities”. The project includes material experiments, designing the shape of the samples, and using the samples for calibrating the material constants of selected ductile damage models. The calibration process for the Bai–Wierzbicki material model is based on fifteen tested samples corresponding with the literature. In this paper, we discuss some promising modifications of basic calibration approaches for uncoupled models. These modifications are based on variants in the formulation of the target function expressing the calibration error. The result of the calibration process was verified through FE simulation of a comparison of each specimen with experimental data. A material model with a description of the ductile damage in a wide range of stress states was searched within the project. For this purpose, the model was tested on some other specimens which exhibit higher stress concentration and showed the limitations of the Bai and Wierzbicki uncoupled model.
  • This paper describes the calibration process for the uncoupled material model of ductile damage designed by Bai and Wierzbicki. This problem has been investigated within the project “Identification of ductile damage parameters for nuclear facilities”. The project includes material experiments, designing the shape of the samples, and using the samples for calibrating the material constants of selected ductile damage models. The calibration process for the Bai–Wierzbicki material model is based on fifteen tested samples corresponding with the literature. In this paper, we discuss some promising modifications of basic calibration approaches for uncoupled models. These modifications are based on variants in the formulation of the target function expressing the calibration error. The result of the calibration process was verified through FE simulation of a comparison of each specimen with experimental data. A material model with a description of the ductile damage in a wide range of stress states was searched within the project. For this purpose, the model was tested on some other specimens which exhibit higher stress concentration and showed the limitations of the Bai and Wierzbicki uncoupled model. (en)
Title
  • Calibration of fracture locus in scope of uncoupled elastic–plastic-ductile fracture material models
  • Calibration of fracture locus in scope of uncoupled elastic–plastic-ductile fracture material models (en)
skos:prefLabel
  • Calibration of fracture locus in scope of uncoupled elastic–plastic-ductile fracture material models
  • Calibration of fracture locus in scope of uncoupled elastic–plastic-ductile fracture material models (en)
skos:notation
  • RIV/26316919:_____/13:#0000478!RIV14-MPO-26316919
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(FR-TI2/279)
http://linked.open...iv/cisloPeriodika
  • 06/2013
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 64135
http://linked.open...ai/riv/idVysledku
  • RIV/26316919:_____/13:#0000478
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Ductile fracture, Damage mechanics, Fracture locus, Uncoupled elastic–plastic-damage, Material experiments, Alternative calibration (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [895052F55828]
http://linked.open...i/riv/nazevZdroje
  • Advances in Engineering Software
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 72
http://linked.open...iv/tvurceVysledku
  • Prantl, A.
  • Džugan, Ján
  • Růžička, J.
  • Kuželka, J.
  • Moravec, M.
  • Španiel, M.
issn
  • 0965-9978
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.advengsoft.2013.05.007
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