STRAIN‐WAVE SHAPES IN ROCK NEAR EXPLOSIONS

Abstract

The shapes of displacement, velocity, acceleration and strain‐wave pulses in solid elastic media near a spherical cavity in which the applied pressure pulse is of the general form [Formula: see text] have been calculated. The computed strain‐wave pulse shapes at various distances from the cavity are compared with typical experimentally recorded strain‐wave pulses and are shown to have similar characteristics. The shapes of the wave pulses, that is, the rise time, pulse width, etc., are shown to be functions of the applied pressure pulse, the distance from the cavity and the properties of the solid medium.