Strain rate behaviour of three rocks in tension

• Autorzy: Cadoni E. , Antonietti S. , Dotta M. , Forni D.
• Języki publikacji: EN

Abstrakty

EN

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, 45and 90 respect to the schistosity, and two different types of marble. Results of the tests show a significantly strain-rate sensitive behaviour, exhibiting dynamic tensile strength increasing with strain-rate. In order to describe the strain rate behaviour of these rocks, the dynamic increase factors in function of the strain rates for tensile strength have been used.

Słowa kluczowe

EN

rock; tension; strain

PL

skała; ciśnienie; odkształcenie

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2011
• Tom: Vol. 59, iss. 3
• Strony: 197--210
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Cadoni E.

autor

Antonietti S.

autor

Dotta M.

autor

Forni D.

• University of Applied Sciences of Southern Switzerland DynaMat Laboratory, Switzerland

Bibliografia

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