Mater.Phys.Mech.(MPM)
No 1, Vol. 23, 2015, pages 61-65

STRUCTURAL-TEMPORAL APPROACH FOR DYNAMIC STRENGTH CHARACTERIZATION OF ROCK

A.M. Bragov, A.Y. Konstantinov, Y.V. Petrov, A.D. Evstifeev

Abstract

Test results of rock obtained by split Hopkinson bar apparatus and his modifications. A uniform interpretation of fracture rate effects of the tested marble samples is given on the basis of the incubation time approach based on a set of fixed material constants. Time dependences of both compressive and tensile strengths are calculated using the incubation time fracture criterion

Keywords: rock; dynamic strength characterization; structural-temporal approach

full paper (pdf, 1312 Kb)