Cadoni, Ezio and Antonietti, Samuel and Dotta, Matteo and Forni, Daniele (2011) Strain Rate Behaviour of three Rocks in Tension. Engineering Transactions, 59 (3). pp. 197-210.
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Abstract
The paper presents the dynamic characterization in tension of three rocks under medium and high strain rates. The tests have been carried out by means of the JRC-Split Hopkinson Tension Bar and an Hydro-Pneumatic Machine installed in the DynaMat Laboratory of the University of Applied Sciences of Southern Switzerland. The dynamic direct tension tests have been performed at 3 different strain rates (0.1, 10, 100 strain/second) on an orthogneiss, for loading directions 0°, 45° and 90° respect to the schistosity, and two different types of marble. Results of the tests show a significantly strain-rate sensitive behavior, exhibiting dynamic tensile strength increasing with strain-rate. In order to describe the strain rate behavior of these rocks the dynamic increase factors in function of the strain rates for tensile strength have been used.
| Item Type: | Scientific journal article, Newspaper article or Magazine article |
|---|---|
| Subjects: | Engineering Engineering > Civil 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 07:46 |
| Last Modified: | 24 Aug 2023 14:00 |
| URI: | http://repository.supsi.ch/id/eprint/1444 |
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