Methods of detecting defects in aircraft and aerospace sandwich structures by use of holographic interferometry are discussed. Three forms of holographic interferometry - real time, double exposure and time average - comprise powerful means of detecting and interpreting structural defects. These techniques are entirely nondestructive and capable of allowing quantitative and qualitative observation of subsurface defects.
Ndt of sandwich structures by holographic interferometry
Materials Evaluation ; 27 , 11 ; 225-231
1969
7 Seiten, 7 Bilder, 2 Quellen
Article (Journal)
English
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