Acoustic Strain Visualization in Structural Materials
Abstract
An experimental acousto-optic time of flight measurement system has been designed and built. In this system an acoustic pulse is launched through a material and the time of transit is measured by optical observation of the arrival time. A timing accuracy of plus or minus 80 P Sec was demonstrated which is 50 times more sensitive than that required to indicate residual stresses in steel on the order of 1,000 PSI. Unfortunately, experimental difficulties precluded the measurement of residual stresses in the test piece.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1982
- Accession Number
- ADA116992
Entities
People
- Rolf K. Mueller
Organizations
- University of Minnesota