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  • 1
    Digitale Medien
    Digitale Medien
    Study on Ductile Fracture Including Shear-Lip Fracture under Mixed Mode Loading Condition (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 33-37 (Mar. 2008), p. 23-28 
    Details
    ISSN: 1662-8985
    Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Thema: Maschinenbau
    Notizen: Dimple fracture tests are conducted under mode I and mixed mode lading conditions.Dimple fracture zone and shear-lip fracture zone are observed by scanning electron microscopeprecisely. It is found that crack growth direction is affected largely by the change of loadingcondition. It is also found that the differences of fracture pattern between mid-plane and at freesurface are very large. Void diameter and crack growth direction are measured. Numericalsimulation is conducted to simulate fracture tests in three-dimensional field. Gurson’s constitutiveequation is used and large deformation analyses are conducted. It is assumed that void nucleation iscontrolled by both plastic strain and stress. Numerical results are compared with those ofexperiments. It is found that results of numerical simulation agree well with those of experimentqualitatively
    Materialart: Digitale Medien
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.23.pdf
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Dimple Fracture Simulation under Mixed Mode Loading Condition (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 385-387 (July 2008), p. 757-760 
    Details
    ISSN: 1013-9826
    Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Thema: Maschinenbau
    Notizen: Dimple fracture under mixed mode loading condition is studied experimentally andnumerically. By the mixed mode loading, it is found that fracture surface becomes much rougherthan that of mode I fracture. It is also found that ductile fracture growth direction deviates from theoriginal plane. It becomes clear that there are two factors affecting ductile fracture processes, one ismixed mode ratio and another is thickness effect. Three-dimensional finite element analyses areconducted to study effects of these factors. For the simulation of ductile fracture, Gurson’sconstitutive equation is used with large deformation theory. These numerical results agree withexperimental observation very well qualitatively
    Materialart: Digitale Medien
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.385-387.757.pdf
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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