NASA NTRS · 20090020375
Replica-Based Crack Inspection
Abstract
Surface 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.
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Newman, John A., Willard, Scott A., Smith, Stephen W., Piascik, Robert S.. 2008-12-25. Replica-Based Crack Inspection. https://ntrs.nasa.gov/citations/20090020375
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