Effect Of Rate Of Loading On Strength And Young's Modulus Of Elasticity Of Rock

Abstract

The effect of loading rates on the strength and tangent modulus of elasticity of a basalt, a granite, and a tuff was investigated using static-loading, rapid-loading, and shock-loading techniques. During static loading, specimens of each rock were loaded at a rate of 50 psi/sec. The specimens tested using static and rapid techniques were loaded in uniaxial compression, while those specimens tested using the shock-loading method were loaded in one-dimensional strain. Static testing was conducted in a 440,000-lb-capacity universal hydraulic testing machine. (Author)