Necking evolution in dynamically stretched bars: new experimental and computational insights

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Show simple item record Vaz-Romero, Álvaro Rotbaum, Yonatan Rodríguez-Martínez, José A. Rittel, Daniel 2019-12-02T13:22:52Z 2019-12-02T13:22:52Z 2016-06-01
dc.identifier.bibliographicCitation Journal of the Mechanics and Physics of Solids, vol. 91, June 2016, pp. 216-239.
dc.identifier.issn 0022-5096
dc.description.abstract This paper presents new results on dynamic neck evolution in steel bars of varying diameters. Dynamic tensile tests were carried out in a Kolsky apparatus using cylindrical steel specimens with various cross-section diameters ranging from 1.5 mm to 4 mm. A high speed digital camera was used to record the deformation of the specimen during the loading process. Video recording of the tests enabled accurate experimental measurements of the necking evolution, specifically its growth rate as a function of the diameter. The experiments show that increasing the specimen cross-section slows down the neck development. This behavior has been further investigated using two different kinds of numerical calculations: (1) axisymmetric finite element simulations and (2) one-dimensional finite difference computations.
dc.description.sponsorship The authors of the University Carlos III of Madrid are indebted to the Ministerio de Economía y Competitividad de España (Projects DPI2014 57989-P and EUIN2015-62556) for the financial support which permitted to conduct part of this work.
dc.format.extent 23
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2016 Elsevier Ltd. All rights reserved.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Dynamic necking
dc.subject.other Necking growth rate
dc.subject.other Dynamic tensile experiments
dc.subject.other Numerical calculations
dc.subject.other Stress multiaxiality
dc.title Necking evolution in dynamically stretched bars: new experimental and computational insights
dc.type article
dc.description.status Publicado
dc.subject.eciencia Ingeniería Mecánica
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI2014 57989-P
dc.relation.projectID Gobierno de España. EUIN2015-62556
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 216
dc.identifier.publicationlastpage 239
dc.identifier.publicationtitle Journal of the Mechanics and Physics of Solids
dc.identifier.publicationvolume 91
dc.identifier.uxxi AR/0000018527
dc.contributor.funder Ministerio de Economía y Competitividad (España)
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