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CONTRIBUTORS:
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JOURNAL:
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YEAR:
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1975
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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Shdow Moire; Curved grating in shadow moire; loading of hyperbolic paraboloid shells;
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DISCIPLINE:
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Engineering and Applied Sciences
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HTTP:
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LANGUAGE:
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English
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PUB ID:
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103-412-094
(Last edited on
2005/01/25 10:01:31 US/Mountain)
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SPONSOR(S):
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ABSTRACT:
The shadow-moire method has been extended to study the large displacements of a uniformly loaded hyperbolic-paraboloid shell. The new technique employs a curved grating which is everywhere equidistant from the initial position of the surface, as in the application of a plane grating in the study of plates. The theory of the curved grating is developed. Experimental verification is reported and a significant increase in accuracy over the equivalent plane grating is observed. The proposed improvement can be applied to the study of any ruled surface.
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