Research Article

Experimental Study of the Mechanical Characteristics of a Rock-Like Material Containing a Preexisting Fissure under Loading and Unloading Triaxial Compression

Table 1

Mechanical parameters of the high-strength steel sheet.

Tensile strength (MPa)Yield strength (MPa)ElongationPercent reduction in areaHardness

≥735≥540≥12≥40≥217