Reflection of Ultrasonic Waves by an Array of Microcracks
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Specular reflection of ultrasonic waves by a flaw plane is affected by the degree of contact of the flaw-plane faces. In general terms, a flaw plane may be viewed as a region where separation zones and contact zones can both exist, and friction may be significant over the contact zones. Achenbach and Norris1 have proposed a set of nonlinear flaw-plane conditions to account for the separation and friction effects. Other conditions, of a linear type, have been discussed by Thompson and Fiedler2.
[1] R. B. Thompson,et al. THE EFFECTS OF CRACK CLOSURE ON ULTRASONIC SCATTERING MEASUREMENTS , 1984 .
[2] Jan Drewes Achenbach,et al. REFLECTION AND TRANSMISSION OF ELASTIC WAVES BY A PERIODIC ARRAY OF CRACKS. , 1985 .
[3] J. Achenbach,et al. Loss of specular reflection due to nonlinear crack-face interaction , 1982 .
[4] Jan Drewes Achenbach,et al. Reflection and transmission of elastic waves by a periodic array of cracks: Oblique incidence , 1985 .