A variational void coalescence model for ductile metals

Handle URI:
http://hdl.handle.net/10754/594295
Title:
A variational void coalescence model for ductile metals
Authors:
Siddiq, Amir; Arciniega, Roman; El Sayed, Tamer
Abstract:
We present a variational void coalescence model that includes all the essential ingredients of failure in ductile porous metals. The model is an extension of the variational void growth model by Weinberg et al. (Comput Mech 37:142-152, 2006). The extended model contains all the deformation phases in ductile porous materials, i.e. elastic deformation, plastic deformation including deviatoric and volumetric (void growth) plasticity followed by damage initiation and evolution due to void coalescence. Parametric studies have been performed to assess the model's dependence on the different input parameters. The model is then validated against uniaxial loading experiments for different materials. We finally show the model's ability to predict the damage mechanisms and fracture surface profile of a notched round bar under tension as observed in experiments. © Springer-Verlag 2011.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Physical Sciences and Engineering (PSE) Division
Citation:
Siddiq A, Arciniega R, El Sayed T (2011) A variational void coalescence model for ductile metals. Comput Mech 49: 185–195. Available: http://dx.doi.org/10.1007/s00466-011-0639-9.
Publisher:
Springer Nature
Journal:
Computational Mechanics
Issue Date:
17-Aug-2011
DOI:
10.1007/s00466-011-0639-9
Type:
Article
ISSN:
0178-7675; 1432-0924
Sponsors:
This work was fully funded by the KAUST baseline fund.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSiddiq, Amiren
dc.contributor.authorArciniega, Romanen
dc.contributor.authorEl Sayed, Tameren
dc.date.accessioned2016-01-19T14:45:26Zen
dc.date.available2016-01-19T14:45:26Zen
dc.date.issued2011-08-17en
dc.identifier.citationSiddiq A, Arciniega R, El Sayed T (2011) A variational void coalescence model for ductile metals. Comput Mech 49: 185–195. Available: http://dx.doi.org/10.1007/s00466-011-0639-9.en
dc.identifier.issn0178-7675en
dc.identifier.issn1432-0924en
dc.identifier.doi10.1007/s00466-011-0639-9en
dc.identifier.urihttp://hdl.handle.net/10754/594295en
dc.description.abstractWe present a variational void coalescence model that includes all the essential ingredients of failure in ductile porous metals. The model is an extension of the variational void growth model by Weinberg et al. (Comput Mech 37:142-152, 2006). The extended model contains all the deformation phases in ductile porous materials, i.e. elastic deformation, plastic deformation including deviatoric and volumetric (void growth) plasticity followed by damage initiation and evolution due to void coalescence. Parametric studies have been performed to assess the model's dependence on the different input parameters. The model is then validated against uniaxial loading experiments for different materials. We finally show the model's ability to predict the damage mechanisms and fracture surface profile of a notched round bar under tension as observed in experiments. © Springer-Verlag 2011.en
dc.description.sponsorshipThis work was fully funded by the KAUST baseline fund.en
dc.publisherSpringer Natureen
dc.subjectConstitutive modelen
dc.subjectDuctile fractureen
dc.subjectVariational constitutive updatesen
dc.subjectVoid coalescenceen
dc.titleA variational void coalescence model for ductile metalsen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalComputational Mechanicsen
kaust.authorSiddiq, Amiren
kaust.authorArciniega, Romanen
kaust.authorEl Sayed, Tamer S.en
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