The holographic determination of stress-levels in a defect-free tube and in the sound section of a tube containing defects. A comparison with stress values using thick cylinder theory is given, and the tube surface area adversely affected by the defects is visualized, Size of defects detectable are also given.
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References
1.
ArchboldE.EnnosA. E.‘Applications of holography and speckle photography to the measurement of displacement’ and strain. The Journal of Strain Analysis JB CSA 1974, 9, 1.
