Reflection and refraction at an interface between cracked elastic solid and ordinary elastic solid

Reflection and transmission of plane waves is considered at an interface between two dissimilar elastic solid half-spaces. Upper medium in which incidence takes place is assumed to be containing microcracks. A critical saturation level is examined for each value of crack density. Numerical study is restricted to a particular model and incidence of only P-wave is considered. Effect of presence of cracks and their saturation on energy partition at the interface is studied numerically for different (i) values of crack density, (ii) degrees of saturation of cracks, and (iii) regimes of connection between cracks. Energy ratios are plotted against angle of incidence varying from 0 to normal incidence. Critical angles of incidence for transmitted P and SV waves are discussed. Complete reflection is observed at incidence other than normal incidence.