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Abstract

The technique of making inexpensive diffraction gratings of a quality suitable for moire fringe strain analysis is described together with a method of viewing the gratings for best results. The use of a reference grid avoids the need for resolving fine lines. A secondary moire pattern obtained by interfering two primary patterns from different loads is used to measure displacements and eliminates imperfections from the gratings. The strain and displacement patterns in knee joints tested by this method are described, and some analytical methods of solving for stress and strain distributions are investigated.

Item Type:	Thesis - Unspecified
Authors/Creators:	Jenkins, CJ
Keywords:	Strength of materials
Copyright Holders:	The Author
Copyright Information:	Copyright 1967 the Author - The University is continuing to endeavour to trace the copyright owner(s) and in the meantime this item has been reproduced here in good faith. We would be pleased to hear from the copyright owner(s).
Additional Information:	Thesis (M.E.) - University of Tasmania, 1967. Includes bibliography
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