Ductile failure prediction of U-notched bainitic functionally graded steel specimens using the equivalent material concept combined with the averaged strain energy density criterion

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dc.contributor	Universitat Politècnica de Catalunya. Doctorat en Enginyeria Civil
dc.contributor.author	Salavati, Hadi
dc.contributor.author	Mohammadi, Hossein
dc.date	2019-05
dc.identifier.citation	Salavati, H.; Mohammadi, H. Ductile failure prediction of U-notched bainitic functionally graded steel specimens using the equivalent material concept combined with the averaged strain energy density criterion. "Physical mesomechanics", Maig 2019, vol. 22, núm. 3, p. 255-260.
dc.identifier.citation	1029-9599
dc.identifier.citation	10.1134/S102995991903010X
dc.identifier.uri	http://hdl.handle.net/2117/169335
dc.language.iso	eng
dc.relation	https://link.springer.com/article/10.1134/S102995991903010X
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liques
dc.subject	Bainitic steel
dc.subject	Functionally graded steel
dc.subject	Strain energy density
dc.subject	Equivalent material concept
dc.subject	U-notch mode I
dc.subject	Acer -- Fractura
dc.title	Ductile failure prediction of U-notched bainitic functionally graded steel specimens using the equivalent material concept combined with the averaged strain energy density criterion
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	The final publication is available at Springer via http://dx.doi.org/10.1134/S102995991903010X
dc.description.abstract	In this paper, the ductile fracture of bainitic functionally graded steel has been studied. Fracture tests was performed on U-notched specimens made of bainitic functionally graded steel under mode I. The averaged strain energy density criterion combined with equivalent material concept was employed to predict the ductile fracture of bainitic functionally graded steel. For this purpose, first, based on equivalent material concept, the mechanical properties of virtual brittle functionally graded steel were obtained. Then the averaged value of strain energy density over a well-defined control volume was calculated by finite element analysis for U-notched virtual brittle functionally graded steel. After that, the fracture loads was obtained based on the averaged strain energy density criterion. The agreement between experimental fracture loads and theoretical predictions was good.
dc.description.abstract	Peer Reviewed

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