Publication:
Finite element simulation of steel ring fragmentation under radial expansion

Simple item page
dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Dinámica y Fractura de Elementos Estructuraleses
dc.contributor.authorRusinek, Alexis
dc.contributor.authorZaera, Ramón
dc.date.accessioned2010-03-15T13:51:58Z
dc.date.available2010-03-15T13:51:58Z
dc.date.issued2007-04
dc.description24 pages, 25 figures.
dc.description.abstractThis paper presents a numerical analysis of the expansion of a mild steel ring with of 50 mm diameter, 1 mm thickness and a cross section of 1 mm2. A hardening relation which takes into account strain, strain rate and temperature is proposed to define precisely the thermoviscoplastic behaviour of the material considered in the study. As a second step, an algorithm to integrate the thermoviscoplastic constitutive equations, including the hardening law, is implemented in the commercial finite element code ABAQUS/Explicit via a user subroutine. Finally, this tool is used to simulate the problem of a ring expanding radially in a broad range of strain rates, covering both low and high initial velocities (from 1 to 370 m/s). The aim is to analyse the effect of loading velocity on the number of fragments resulting from the multiple failure of the ring and also the influence of the hardening behaviour of the material on the number of fragments and on the failure mode of the ring, considering different values of the plastic strain hardening exponent n0. A simple failure criterion was used, based on a critical value of the equivalent strain which depends on the hardening exponent. The numerical predictions, in perfect agreement with the experimental observations, are compared with several analytical or numerical models used to solve the same problem in other materials such as aluminium, steel or copper.
dc.description.statusPublicado
dc.format.mimetypetext/html
dc.identifier.bibliographicCitationInternational Journal of Impact Engineering, 2007, vol. 34, n. 4, p. 799-822
dc.identifier.doi10.1016/j.ijimpeng.2006.01.003
dc.identifier.issn0734-743X
dc.identifier.urihttps://hdl.handle.net/10016/7341
dc.language.isoeng
dc.publisherElsevier
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.ijimpeng.2006.01.003
dc.rights© Elsevier
dc.rights.accessRightsopen access
dc.subject.ecienciaIngeniería Mecánica
dc.subject.ecienciaIngeniería Industrial
dc.subject.otherDynamic ring expansion
dc.subject.otherConstitutive relation
dc.subject.otherThermoviscoplasticity
dc.subject.otherNecking
dc.subject.otherNumerical simulation
dc.titleFinite element simulation of steel ring fragmentation under radial expansion
dc.typeresearch article*
dc.type.reviewPeerReviewed
dspace.entity.typePublication
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
finite_zaera_ijie_2007_ps.pdf
Size:
1.84 MB
Format:
Adobe Portable Document Format
Description:
postprint version
Download
Collections
DMMCTE - DFEE - Artículos de revistas