Analysis of inertia and scale effects on dynamic neck formation during tension of sheet steel

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Show simple item record Rusinek, Alexis Zaera Polo, Ramón Eulalio Klepaczko, Janusz Roman Cheriguene, Rachid 2010-03-16T12:35:16Z 2010-03-16T12:35:16Z 2005-12
dc.identifier.bibliographicCitation Acta Materialia, 2005, vol. 53, n. 20, p. 5387-5400
dc.identifier.issn 1359-6454
dc.description 14 pages, 17 figures.
dc.description.abstract It is well known that a specimen for impact testing must be optimized in terms of its dimensions. The main reason is to reduce strain gradients due to the effects of elastic–plastic wave propagation. On the other hand, when a split Hopkinson bar in tension is applied, the net displacement of the specimen ends is very limited, usually from 2.0 to 3.0 mm. Thus, to reach a maximum strain of 0.5 the specimen length must be reduced in dimensions from 4.0 to 6.0 mm. Consequently, small diameters or lateral dimensions and lengths must be applied to assure one-dimensional deformation. Such small lengths substantially perturb the determination of real material behavior. So the main motivation of this study was to perform a systematic analysis, numerical and analytical, to find differences in the behavior of short and long specimens loaded in impact tension. The finite element code ABAQUS/Explicit has been used to simulate several specimen lengths from 10 to 40 mm submitted to impact velocities ranging from 10 to 100 m/s.
dc.format.mimetype application/octet-stream
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier
dc.subject.other Constitutive relation
dc.subject.other Dynamic tension
dc.subject.other Normalization
dc.subject.other Plastic instability
dc.subject.other Numerical simulations
dc.title Analysis of inertia and scale effects on dynamic neck formation during tension of sheet steel
dc.type article PeerReviewed
dc.description.status Publicado
dc.subject.eciencia Ingeniería Mecánica
dc.subject.eciencia Ingeniería Industrial
dc.identifier.doi 10.1016/j.actamat.2005.08.019
dc.rights.accessRights openAccess
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