Fatigue and strain hardening behaviour of graywacke from the flagstaff formation, New South Wales

Microstructural investigation of subcritical crack propagation and Fracture Process Zone (FPZ) by the reduction of rock fracture toughness under cyclic loading

“…The general procedure to obtain an S\ \N curve is to reduce the maximum applied load from test to test until the fatigue life (no failure) of the specimen is reached. In the literature, the S\ \N curve concept has been used for fatigue research under uniaxial compressive loading with cylindrical rock samples (Haimson and Kim, 1971;Haimson, 1978;Singh, 1989). However, this current study is the first time in the literature that an S\ \N curve for fracture toughness degradation due to fatigue under cyclic loading has been obtained.…”

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

“…The different crack processes identified as well as wear along crack edge tend to prove that one or several particular fatigue mechanisms exist. It is particularly shown in Singh (1989) and Momeni et al (2015) that fatigue life is modified by the cyclic amplitude, for a given maximum stress. This is also consistent with the conceptual model presented before, describing the behaviour of a single crack (Zoback and Byerlee 1975;David et al 2012).…”

Fatigue properties of intact sandstone samples subjected to dynamic uniaxial cyclical loading

“…From the reported literature, it was found that intact [3][4][5][6][7][8][9][10][11][12][13][14][15][16] and failed models of jointed rock [17][18][19][20] were extremely susceptible to cyclic fatigue failure. Some have also studied the dynamic damage properties of nonjointed intact samples [21][22][23][24][25].…”