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Strain Analysis of a Disk Subjected to Diametral Compression by Means of Holographic Interferometry

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Abstract

Two simultaneous holograms and several directions of observation are utilized to determine the components of displacement and strain in the disk. A reference strip is introduced to relate the fringe orders in the two holograms. A very good agreement is obtained between the holographic results and the elasticity theory solution. The obtained displacement field is estimated to be accurate to 8 × 10−6 cm, which is approximately one-eighth the wavelength of the laser light utilized to obtain the holograms.

© 1973 Optical Society of America

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