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Progress in speckle-shift strain measurementThe Instrumentation and Control Technology Division of the Lewis Research Center has been developing an in-house capability to make one dimensional and two dimensional optical strain measurements on high temperature test specimens. The measurements are based on a two-beam speckle-shift technique. The development of composite materials for use in high temperature applications is generating interest in using the speckle-shift technique to measure strains on small diameter fibers and wires of various compositions. The results of preliminary speckle correlation tests on wire and fiber specimens are covered, and the advanced system currently under development is described.
Document ID
19930022369
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lant, Christian T. (Sverdrup Technology, Inc. Brook Park, OH., United States)
Barranger, John P. (NASA Lewis Research Center Cleveland, OH, United States)
Oberle, Lawrence G. (NASA Lewis Research Center Cleveland, OH, United States)
Greer, Lawrence C., III (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1991
Publication Information
Publication: Structural Integrity and Durability of Reusable Space Propulsion Systems
Subject Category
Structural Mechanics
Accession Number
93N31558
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19930022363Collected WorksStructural Integrity and Durability of Reusable Space Propulsion Systems
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