Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijimpeng.2003.09.002
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dc.titleAn analysis of stress uniformity in split Hopkinson bar test specimens
dc.contributor.authorYang, L.M.
dc.contributor.authorShim, V.P.W.
dc.date.accessioned2014-10-07T09:01:05Z
dc.date.available2014-10-07T09:01:05Z
dc.date.issued2005-02
dc.identifier.citationYang, L.M., Shim, V.P.W. (2005-02). An analysis of stress uniformity in split Hopkinson bar test specimens. International Journal of Impact Engineering 31 (2) : 129-150. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijimpeng.2003.09.002
dc.identifier.issn0734743X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/84856
dc.description.abstractThe assumption of uniform stress in a test specimen is fundamental to the split Hopkinson bar (SHB) test technique. Based on the method of characteristics for one-dimensional waves, the degree of stress uniformity in specimens tested dynamically by the SHB method is examined. The time duration tb (or number of transits n an elastic wave makes from one end to the other of a specimen) required to attain stress equilibrium is established and related to the relative mechanical impedance β of the specimen. The effects of the rising edge in the incident pulse on this time duration are also studied and the results appear to indicate that the shortest time to achieve uniformity of stress in a specimen requires the incident pulse to have a specific profile. The results of this study provide guidelines to assess the validity of experimental data. © 2003 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.ijimpeng.2003.09.002
dc.sourceScopus
dc.subjectHopkinson bar
dc.subjectPulse shape
dc.subjectStress uniformity
dc.subjectWave propagation
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.ijimpeng.2003.09.002
dc.description.sourcetitleInternational Journal of Impact Engineering
dc.description.volume31
dc.description.issue2
dc.description.page129-150
dc.description.codenIJIED
dc.identifier.isiut000224996800002
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