Effect of Specimen Width on the Contact State between the Three-Point Bending Specimen and Supports in Hopkinson Bar

Chun Huan Guo; Rui Tang Liu

doi:10.4028/www.scientific.net/KEM.462-463.553

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 462-463Effect of Specimen Width on the Contact State...

Effect of Specimen Width on the Contact State between the Three-Point Bending Specimen and Supports in Hopkinson Bar

Abstract:

The effect of specimen width on the contact state between the three-point bending (TPB) specimen and supports has been investigated with the apparatus of Hopkinson pressure bar using the analysis method of the propagation of stress wave. The results indicate that, the time for loss of contact decreases linearly with the increase of specimen width when the specimen width is less than a critical value, and the relationship between the time for loss of contact and the specimen width shows a parallel line to the abscissa when the specimen width is greater than the critical value.

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Periodical:

Key Engineering Materials (Volumes 462-463)

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553-558

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.462-463.553

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Online since:

January 2011

Authors:

Chun Huan Guo, Rui Tang Liu

Keywords:

Hopkinson Bar, Loss of Contact, Specimen Width, Three-Point Bending Specimen

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