Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23524
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dc.contributor.authorWang, ZXen_US
dc.contributor.authorShi, HJen_US
dc.contributor.authorLu, Jen_US
dc.contributor.authorShi, Pen_US
dc.contributor.authorMa, XFen_US
dc.date.accessioned2015-06-23T09:10:42Z-
dc.date.available2015-06-23T09:10:42Z-
dc.date.issued2008-
dc.identifier.citationNuclear engineering and design, 2008, v. 238, no. 12, p. 3186-3193en_US
dc.identifier.issn0029-5493-
dc.identifier.urihttp://hdl.handle.net/10397/23524-
dc.description.abstractSmall punch (SP) tests have been performed at room temperature on round specimens with six kinds of thicknesses. Experimental results show that the SP energy, the fracture strain and the fracture toughness increase with the thickness of the SP samples. Fracture surface displays typical ductile fracture, and the outer surface of the hemispherical bulk part punched off is full of little bowings around which there are many microcracks caused by the stretch stress under biaxial strain/stress state. From the view point of the energy dissipation, the fundamental theoretical model of fracture toughness is proposed, according to which the ductile fracture toughness is obtained from the SP energy, the plastic deformation and the experimental fractography. The fracture strain and the fracture energy density criteria are introduced into the local failure model. With the continuum damage model, the FEA simulations provide the results of the crack propagation process which agree with the experimental results and can verify the fracture model.en_US
dc.description.sponsorshipDepartment of Mechanical Engineeringen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofNuclear Engineering and Designen_US
dc.titleSmall punch testing for assessing the fracture properties of the reactor vessel steel with different thicknessesen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage3186-
dc.identifier.epage3193-
dc.identifier.volume238-
dc.identifier.issue12-
dc.identifier.doi10.1016/j.nucengdes.2008.07.013-
dc.identifier.isiWOS:000261292000002-
dc.identifier.scopus2-s2.0-54949157382-
dc.identifier.rosgroupidr41900-
dc.description.ros2008-2009 > Academic research: refereed > Publication in refereed journal-
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