Finite element analysis of AISI 304 steel sheets subjected to dynamic tension: The effects of martensitic transformation and plastic strain development on flow localization

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dc.contributor.author Rodríguez-Martínez, José A.
dc.contributor.author Rittel, D.
dc.contributor.author Zaera Polo, Ramón Eulalio
dc.contributor.author Osovski, S.
dc.date.accessioned 2013-06-03T14:06:00Z
dc.date.available 2013-06-03T14:06:00Z
dc.date.issued 2013-04-01
dc.identifier.bibliographicCitation International journal of impact engineering, April 2013, vol. 54, pp. 206-216
dc.identifier.issn 0734-743X
dc.identifier.uri http://hdl.handle.net/10016/17017
dc.description.abstract The paper presents a finite element study of the dynamic necking formation and energy absorption in AISI 304 steel sheets. The analysis emphasizes the effects of strain induced martensitic transformation (SIMT) and plastic strain development on flow localization and sample ductility. The material behavior is described by a constitutive model proposed by the authors which includes the SIMT at high strain rates. The process of martensitic transformation is alternatively switched on and off in the simulations in order to highlight its effect on the necking inception. Two different initial conditions have been applied: specimen at rest which is representative of a regular dynamic tensile test, and specimen with a prescribed initial velocity field in the gauge which minimizes longitudinal plastic wave propagation in the tensile specimen. Plastic waves are found to be responsible for a shift in the neck location, may also mask the actual constitutive performance of the material, hiding the expected increase in ductility and energy absorption linked to the improved strain hardening effect of martensitic transformation. On the contrary, initializing the velocity field leads to a symmetric necking pattern of the kind described in theoretical works, which reveals the actual material behavior. Finally the analysis shows that in absence of plastic waves, and under high loading rates, the SIMT may not further increase the material ductility.
dc.description.sponsorship D. Rittel acknowledges the support of Carlos III University with a Cátedra de Excelencia funded by Banco Santander during academic year 2011-2012. The researchers of the University Carlos III of Madrid are indebted to the Comunidad Autónoma de Madrid (Project CCG10 UC3M/DPI 5596) and to the Ministerio de Ciencia e Innovación de España (Project DPI/2008 06408) for the financial support received which allowed conducting part of this work.
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier
dc.subject.other Dynamic tension
dc.subject.other Necking
dc.subject.other Strain induced martensitic transformation
dc.subject.other Critical impact velocity
dc.title Finite element analysis of AISI 304 steel sheets subjected to dynamic tension: The effects of martensitic transformation and plastic strain development on flow localization
dc.type article
dc.type.review PeerReviewed
dc.relation.publisherversion http://dx.doi.org/10.1016/j.ijimpeng.2012.11.003
dc.subject.eciencia Ingeniería Industrial
dc.subject.eciencia Ingeniería Mecánica
dc.identifier.doi 10.1016/j.ijimpeng.2012.11.003
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI2008-06408
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 206
dc.identifier.publicationlastpage 216
dc.identifier.publicationtitle International journal of impact engineering
dc.identifier.publicationvolume 54
dc.identifier.uxxi AR/0000012871
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