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LDEF materials data analysis: Representative examplesPart of the philosophy which guided the examination of hardware from the Long Duration Exposure Facility (LDEF) was that materials present at multiple locations should have fairly high priority for investigation. Properties of such materials were characterized as a function of exposure conditions to obtain as much data as possible for predicting performance lifetimes. Results from examination of several materials from interior locations of LDEF, selected measurements on silverized teflon blanket specimens, and detailed measurements on the copper grounding strap from tray D11 are summarized. Visual observations of interior locations of LDEF made during deintegration at KSC showed apparent changes in particular specimens. This inspection lead to testing of selected nylon clamps, fiberglass shims, and heat shrink tubing from wire harness clamps, and visually discolored silver coated hex nuts.
Document ID
19930019096
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pippin, Gary (Boeing Defense and Space Group Seattle, WA, United States)
Crutcher, Russ (Boeing Defense and Space Group Seattle, WA, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1993
Publication Information
Publication: NASA. Langley Research Center, LDEF: 69 Months in Space. Part 3: Second Post-Retrieval Symposium
Subject Category
Inorganic And Physical Chemistry
Accession Number
93N28285
Funding Number(s)
CONTRACT_GRANT: NAS1-19247
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19930019065Collected WorksLDEF: 69 Months in Space. Part 3: Second Post-Retrieval Symposium
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