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Crack-opening displacement transducerCrack-opening displacement transducer consists of 30 deg cone, coil spring, and linear-displacement transducer. Conical probe is used to measure crack opening. Cone is pressed firmly into crack by spring. As applied load causes crack to open up, cone is pushed further into it. Movement of cone, and thus crack growth, is monitored by linear-displacement transducer. Method gives more accurate measurement of crack-opening displacement of very narrow slots.
Document ID
19790000381
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Simonds, R. A. (Vought Corp.)
Date Acquired
August 10, 2013
Publication Date
April 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 4
Issue: 3
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-12485
Report Number: LAR-12485
ISSN: 0145-319X
Accession Number
79B10381
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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