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      • Department of Industrial Engineering
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      A study on curing processes and environmental effects for rapid composite repair

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      Author
      Elaldı, Faruk
      Elaldı, Pelin
      Date
      2011
      Source Title
      Journal of Reinforced Plastics and Composites
      Print ISSN
      0731-6844
      Volume
      30
      Issue
      9
      Pages
      749 - 755
      Language
      English
      Type
      Article
      Item Usage Stats
      112
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      83
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      Abstract
      This article focuses on scarf joint comprised of vacuum-precured, vacuum-cocured, autoclave-procured, and autoclave-cocured composite patches bonded to autoclave- and vacuum-precured parent laminates. Autoclave- and vacuum-cured parent laminates and scarf joints were prepared and exposed to the same temperature and moisture environment for comparison. All specimens were loaded in tension at three temperatures. Interlaminar shear strength (ILSS) tests were also carried out for the parent materials. As noted, the tensile strength and ILSS decrease when the material has been exposed to moisture and tested at elevated temperature. But, no significant difference was reported for either tensile strength or ILSS between autoclave- and vacuum-cured materials. The room temperature repair efficiencies are reported for single-scarf repairs comprised of vacuum-cocured and vacuum-precured patches. These vacuum-cured repair efficiencies were found to be similar to the efficiency of the autoclave-precured patch repair. This result supports the feasibility of scarf joint repairs with precured or cocured patches under vacuum curing conditions in field-level facilities. Therefore, repairs with vacuum-precured or vacuum-cocured patches requiring less equipments seem to be a serious potential alternative to the composite patch repair requiring autoclave conditions which might be only available at depot-level maintenance centers.
      Keywords
      Cocure
      Composite
      Effect
      Environmental
      Joint
      Precure
      Repair
      Scarf
      Permalink
      http://hdl.handle.net/11693/21934
      Published Version (Please cite this version)
      http://dx.doi.org/10.1177/0731684411403021
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      • Department of Industrial Engineering 677
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