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Erschienen in: Experimental Mechanics 6/2008

01.12.2008 | BRIEF TECHNICAL NOTE

A Long Split Hopkinson Pressure Bar (LSHPB) for Intermediate-rate Characterization of Soft Materials

verfasst von: B. Song, C. J. Syn, C. L. Grupido, W. Chen, W.-Y. Lu

Erschienen in: Experimental Mechanics | Ausgabe 6/2008

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Abstract

In this study, we developed a long split Hopkinson pressure bar (LSHPB) for mechanically characterizing soft materials at intermediate strain rates. Using a proper pulse shaper, a loading pulse over 3 ms was produced for compression experiments on a PMDI foam material at the strain rates in the order of 10/s. The pulse shaping technique minimized the dispersion effects of stress wave when propagating through such a long bar system. Consistency of stress–strain curves obtained from the LSHPB and an MTS in the same strain rate range shows that a gap currently existing in intermediate strain-rate range is closed by the introduction of the LSHPB.

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Metadaten
Titel
A Long Split Hopkinson Pressure Bar (LSHPB) for Intermediate-rate Characterization of Soft Materials
verfasst von
B. Song
C. J. Syn
C. L. Grupido
W. Chen
W.-Y. Lu
Publikationsdatum
01.12.2008
Verlag
Springer US
Erschienen in
Experimental Mechanics / Ausgabe 6/2008
Print ISSN: 0014-4851
Elektronische ISSN: 1741-2765
DOI
https://doi.org/10.1007/s11340-007-9095-z

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