ULTRASONIC WAVE RESONANCE CAPTURE IN AN ELASTIC LAYER WITH A HORIZONTAL STRIP-LIKE CRACK
The early developed semi-analytical methods for elastic waves diffraction in a layer with a horizontal strip-like crack are used to analyze non-stationary signal propagation. Non-stationary signal capture for impulse spectrum including pure material spectral points of boundary value problem is considered. Infinite duration of wave motion in the cracked area for non-stationary signal of finite duration is observed.