Effects of Acoustic Emission and Energy Evolution of Rock Specimens Under the Uniaxial Cyclic Loading and Unloading Compression

By Qingbin Meng, Mingwei Zhang, L. Han, H. Pu, T. Nie. Rock Mechanics and Rock Engineering, 2016

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Experimental Investigation of the Influence of Joint Geometric Configurations on the Mechanical Properties of Intermittent Jointed Rock Models Under Cyclic Uniaxial Compression (2017, background): “The following equations show the calculating details (Meng et al. 2016): u ¼ R e3 e1 rde ¼ Pn i¼1 1 2 ðri2 þ ri1Þðei2 ei1Þ ue ¼ R e3 e2 rde ¼ Pn i¼1 1 2 ðri2 þ ri1Þðeei2 e e i1 Þ ud ¼ u ue ¼ R e3 e1 rde R e3 e2 rde 8 >> >< > > : ð2Þ Table 2 Summary of joint geometric configurations and fatigue…”
Experimental Investigation on the Fatigue Mechanical Properties of Intermittently Jointed Rock Models Under Cyclic Uniaxial Compression with Different Loading Parameters (2017, methodology): “The following equations are generally employed to determine the fatigue energy density parameters (Meng et al. 2016): (4) u = ∫ d”
Deformation Damage and Energy Evolution Characteristics of Coal at Different Depths (2018, background): “The release of accumulated elastic energy in the rock is the internal cause of the sudden failure (Meng et al. 2016).”
Acoustic Emission Characteristics of Red Sandstone Specimens Under Uniaxial Cyclic Loading and Unloading Compression (2018, unknown): “However, stress conditions in engineering fields are very complicated and frequently manifested via the cyclic loading–unloading failure mode (Li and Norlund 1993a; Rao and Ramana 1992; Meng et al. 2016; Yang and Jing 2013).”