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Replica-Based Crack InspectionSurface replication has been proposed as a method for crack detection in space shuttle main engine flowliner slots. The results of a feasibility study show that examination of surface replicas with a scanning electron microscope can result in the detection of cracks as small as 0.005 inch, and surface flaws as small as 0.001 inch, for the flowliner material.
Document ID
20090020375
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1016/j.engfracmech.2008.12.012
Authors
Newman, John A. (NASA Langley Research Center Hampton, VA, United States)
Willard, Scott A. (Lockheed Martin Space Operations Hampton, VA, United States)
Smith, Stephen W. (NASA Langley Research Center Hampton, VA, United States)
Piascik, Robert S. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 24, 2013
Publication Date
December 25, 2008
Publication Information
Publication: Engineering Fracture Mechanics
Publisher: Elsevier Ltd.
Volume: 76
Issue: 7
Subject Category
Quality Assurance And Reliability
Report/Patent Number
LF99-7363
Report Number: LF99-7363
Distribution Limits
Public
Copyright
Public Use Permitted.

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