REFLECTION OF RAYLEIGH WAVES FROM A CRACK TIP
A semi-infinite plane crack in an unbounded isotropic elastic solid is considered. The incident surface waves are time-harmonic and are prescribed in such a way that a state of plane strain exists. The problem is solved by integral transform methods. Upon reflection, the incident surface waves are found to give rise to cylindrical dilatational and shear waves, along with their associated head waves, diverging from the crack tip. In addition, reflected surface waves are generated on the faces of the crack. Numerical values of the relative amplitudes and phases of the reflected surface waves on each face of the crack are presented for several combinations of incident waves. From these results, the rate at which surface wave energy is lost due to mode conversion to body wave modes can be determined. Study of interest in area of ultrasonic flaw detection.
- Developments in Mechanics, Vol 6, Proceedings 12th Midwest Mechanical Conference, Notre Dame, Indiana, August 16-18, 1971.
Notre Dame University PressNotre Dame, Indiana,
- Freund, L B
- Publication Date: 1971
- Features: References;
- Pagination: p. 489-500
- TRT Terms: Flaw detection; Inspection; Nondestructive tests; Ultrasonic tests; Wave motion
- Subject Areas: Marine Transportation; Materials;
- Accession Number: 00041544
- Record Type: Publication
- Source Agency: Engineering Index
- Files: TRIS
- Created Date: Mar 19 1973 12:00AM