Cadoni, Ezio and Albertini, Carlo (2011) Modified Hopkinson Bar Technologies Applied to the High Strain Rate of Rocks. In: Zhou, Yingxin and Zhao, Jian, (eds.) Advances in Rock Dynamics and Applications. Taylor & Francis, pp. 79-104. ISBN 978-0-415-61351-4
Full text not available from this repository.Abstract
The basic physical principle of a Modified Hopkinson Bar (MHB) Apparatus for testing rock specimens at high strain rate in tension and compression is presented. The MHB has been provided with a pulse shaper needed for an accurate dynamic testing at constant strain rate both during the elastic deformation phase and the strain hardening phase of the dynamic stress-strain curve; definitions of strain rate and of the record analysis methodology for an accurate determination of the dynamic stress-strain curves are discussed. A version of the MHB has been presented for the study of the effects of confinement on the dynamic stress-strain curves of rock materials. Some versions of the MHB for field measurements of dynamic mechanical properties of rocks are proposed.
| Item Type: | Chapter in book |
|---|---|
| Subjects: | Engineering Engineering > Civil engineering Engineering > Civil engineering > Structural engineering Engineering > Civil engineering > Geotechnical engineering |
| Department/unit: | Dipartimento ambiente costruzioni e design > Laboratorio SUPSI DYNAMAT |
| Depositing User: | Ezio Cadoni |
| Date Deposited: | 14 Jan 2013 08:39 |
| Last Modified: | 24 Aug 2023 14:00 |
| URI: | http://repository.supsi.ch/id/eprint/1684 |
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