An implicit consistent algorithm for the integration of thermoviscoplastic constitutive equations in adiabatic conditions and finite deformations

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dc.contributor.author Zaera Polo, Ramón Eulalio
dc.contributor.author Fernández Sáez, José
dc.date.accessioned 2010-03-18T08:55:08Z
dc.date.available 2010-03-18T08:55:08Z
dc.date.issued 2006-03
dc.identifier.bibliographicCitation International Journal of Solids and Structures, 2006, vol. 43, n. 6, p. 1594-1612
dc.identifier.issn 0020-7683
dc.identifier.uri http://hdl.handle.net/10016/7420
dc.description 19 pages, 4 figures.
dc.description.abstract The so-called viscoplastic consistency model, proposed by Wang, Sluys and de Borst, is extended here to the integration of a thermoviscoplastic constitutive equation for J2 plasticity and adiabatic conditions. The consistency condition in this case includes not only strain rate but also the effect of temperature on the yield function. Using the backward Euler integration scheme to integrate the constitutive equations, an implicit algorithm is proposed, leading to generalized expressions of the classical return mapping algorithm for J2 plasticity, both for the iterative calculation of the plastic multiplier increment and for the consistent tangent operator when strain rate and temperature are considered also as state variables of the hardening equation. The model was implemented in a commercial finite element code and its performance is demonstrated with the numerical simulation of four Taylor impact tests.
dc.description.sponsorship This research was done with the financial support of the Comunidad Autónoma de Madrid under Project 07N/0040/2002.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier
dc.subject.other Finite element solution
dc.subject.other Viscoplastic
dc.subject.other Thermal softening
dc.subject.other Impact
dc.subject.other Finite deformation
dc.title An implicit consistent algorithm for the integration of thermoviscoplastic constitutive equations in adiabatic conditions and finite deformations
dc.type article
dc.type.review PeerReviewed
dc.description.status Publicado
dc.relation.publisherversion http://dx.doi.org/10.1016/j.ijsolstr.2005.03.070
dc.subject.eciencia Ingeniería Mecánica
dc.subject.eciencia Ingeniería Industrial
dc.identifier.doi 10.1016/j.ijsolstr.2005.03.070
dc.rights.accessRights openAccess
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