Detail publikace

Determination of Ramberg-Osgood approximation for estimation of low- temperature fracture toughness.

ŠANDERA, P. HORNÍKOVÁ, J. KIANICOVÁ, M. DLOUHÝ, I. POKLUDA, J.

Originální název

Determination of Ramberg-Osgood approximation for estimation of low- temperature fracture toughness.

Anglický název

Determination of Ramberg-Osgood approximation for estimation of low- temperature fracture toughness.

Jazyk

en

Originální abstrakt

his article presents a new method for determination of parameters of the Ramberg-Osgood (R-O) approxi-mation of the tensile diagram based on the loading-frame displacement. This procedure was successfully verified on thesamples of the high strength steel OCHN3MFA tested at various temperatures with records of both the extensometer elon-gation and the load-frame displacement. The method can be used in the model for prediction of theKIc-value based onthe critical strain local approach. The parameters of the R-O approximation obtained from the extensometer-controlledand the load-frame controlled tests are in a very good agreement. Moreover, the experimentalKIc-value at the cryogenictemperature of 77 K and the theoretical one predicted using the loading-frame displacement data are practically identical.

Anglický abstrakt

his article presents a new method for determination of parameters of the Ramberg-Osgood (R-O) approxi-mation of the tensile diagram based on the loading-frame displacement. This procedure was successfully verified on thesamples of the high strength steel OCHN3MFA tested at various temperatures with records of both the extensometer elon-gation and the load-frame displacement. The method can be used in the model for prediction of theKIc-value based onthe critical strain local approach. The parameters of the R-O approximation obtained from the extensometer-controlledand the load-frame controlled tests are in a very good agreement. Moreover, the experimentalKIc-value at the cryogenictemperature of 77 K and the theoretical one predicted using the loading-frame displacement data are practically identical.

Dokumenty

BibTex


@inproceedings{BUT169882,
  author="Pavel {Šandera} and Jana {Horníková} and Marta {Kianicová} and Ivo {Dlouhý} and Jaroslav {Pokluda}",
  title="Determination of Ramberg-Osgood approximation for estimation of low- temperature fracture toughness.",
  annote="his article presents a new method for determination of parameters of the Ramberg-Osgood (R-O) approxi-mation of the tensile diagram based on the loading-frame displacement.  This procedure was successfully verified on thesamples of the high strength steel OCHN3MFA tested at various temperatures with records of both the extensometer elon-gation and the load-frame displacement.  The method can be used in the model for prediction of theKIc-value based onthe critical strain local approach.  The parameters of the R-O approximation obtained from the extensometer-controlledand the load-frame controlled tests are in a very good agreement.  Moreover, the experimentalKIc-value at the cryogenictemperature of 77 K and the theoretical one predicted using the loading-frame displacement data are practically identical.",
  address="AIP Publishing LLC.",
  booktitle="Fracture and Damage Mechanics",
  chapter="169882",
  doi="10.1063/5.0033973",
  howpublished="online",
  institution="AIP Publishing LLC.",
  number="1",
  year="2020",
  month="november",
  pages="020024-1--020024-6",
  publisher="AIP Publishing LLC.",
  type="conference paper"
}