Moire interferometry and crack closure

MacKenzie, P.M.; (2003) Moire interferometry and crack closure. In: Handbook of Moire Measurement (Series in Optics and Optoelectronics). Taylor and Francis, pp. 110-119. ISBN 0750305223

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Abstract

This paper describes the use of an in situ Moiré interferometer which enables crack closure readings to be taken at any point in the life of a fatigue specimen without the need to transfer the specimen from the loading machine to a separate rig.