Calculational model for the shear wave echo from subsurface planar flaws

Author: Ammirato, F. V.
Published: United States : [publisher not identified], 1976.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1976.
Physical Description: microfiche : negative ; 11 x 15 cm

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Summary

A mathematical model was constructed to predict the echo from planar reflectors whose flanks do not necessarily intersect a surface of the material being ultrasonically tested. An approach modified from that used by Werneyer and Schlengermann was employed to calculate the amplitudes and relative phases of the scattered waves returning to the transducer from a reflector of arbitrary size, angle of inclination, and location. Directional characteristics of the reflector and receiver are accounted for. Experimental measurements were in good agreement with calculations. This study showed that reflections from subsurface flaws are strongly dependent on test conditions and that the reflection from an interior reflector can be significantly less than that from a surface reflector of the same size.

Report Numbers

KAPL-P-4044; CONF-760506-1

Other Subject(s)

Collection

U.S. Atomic Energy Commission depository collection.

Note

DOE contract number: W-31-109-ENG-52
OSTI Identifier 7351055
Research organization: Knolls Atomic Power Lab., Schenectady, N.Y. (USA).

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