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A Protection And Detection Surface (PADS) for damage toleranceA protection and detection surface (PADS) concept was studied for application to composite primary aircraft structures. A Kevlar-epoxy woven face sheet with a Rohacell foam core was found to be the most effective PADS configuration among the configurations evaluated. The weight of the PADS configuration was estimated to be approximately 17 pct of the structural weight. The PADS configuration was bonded to graphite-epoxy base laminates, and up to a 70 pct improvement in compression-after-impact failure strains was observed.
Document ID
19900018472
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Shuart, Mark J.
(NASA Langley Research Center Hampton, VA., United States)
Prasad, Chunchu B.
(Analytical Services and Materials, Inc., Hampton VA., United States)
Biggers, Sherrill B.
(Lockheed Aeronautical Systems Co. Burbank, CA., United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1990
Subject Category
Composite Materials
Report/Patent Number
NAS 1.60:3011
NASA-TP-3011
L-16775
Accession Number
90N27788
Funding Number(s)
PROJECT: RTOP 510-02-21-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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