Fatigue behaviour of rock
暂无分享,去创建一个
Abstract The mechanism of fatigue in rocks has never been satisfactorily described. This present note reports the results of a number of fatigue tests on dolomite specimens, and proposes a hypothesis to explain the resultant deformation based on a description of rock failure in terms of strain energy-dependent crack propagation. The basic argument is that above a stress level at which cracks are initiated, deformation from successive sub-failure load cycles will be cumulative, and failure will occur when the strain energy stored in the specimen exceeds a critical energy level equivalent to failure under non-cyclic loading.
[1] Z. T. Bieniawski,et al. Stability concept of brittle fracture propagation in rock , 1967 .
[2] J. Handin,et al. EXPERIMENTAL DEFORMATION OF DOLOMITE SINGLE CRYSTALS , 1959 .
[3] N. T. Burdine. Rock Failure Under Dynamic Loading Conditions , 1963 .
[4] A C Whiffin,et al. FAILURE OF PLAIN CONCRETE UNDER FATIGUE LOADING - A REVIEW OF CURRENT KNOWLEDGE , 1968 .