1 Ocak 2018 Dergi makalesi Açık Erişim

Yilmaz, C.; Akalin, C.; Gunal, I.; Celik, H.; Buyuk, Murat; Suleman, A.; Yildiz, M.

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  <dc:creator>Yilmaz, C.</dc:creator>
  <dc:creator>Akalin, C.</dc:creator>
  <dc:creator>Gunal, I.</dc:creator>
  <dc:creator>Celik, H.</dc:creator>
  <dc:creator>Buyuk, Murat</dc:creator>
  <dc:creator>Suleman, A.</dc:creator>
  <dc:creator>Yildiz, M.</dc:creator>
  <dc:date>2018-01-01</dc:date>
  <dc:description>Micro-damage initiation and accumulation in two different Glass Fiber Reinforced -E-glass and S-glass-Laminated Composite Structures (LCS) subjected to in-plane shear stressing are monitored with Acoustic Emission (AE) and thermography methods. AE signals caused by micro-damage formation are graphed as a scatter plot of Weighted Peak Frequency (WPF) versus Partial Power 2 (PP2) features and clustered using the K-means algorithm with Bray Curtis dissimilarity function thus resulting in three different well-separated clusters. Each of these clusters corresponds to different micro damages, i.e., transverse cracks, delaminations, or fiber ruptures. It is observed that the E-glass reinforced LCS has higher numbers of AE hits. Thus, the total amount of micro-damage incurred as well as the average temperature change measured by thermography is higher for the E-glass reinforced LCS. It is shown that due to the curing induced residual tensile stress in E-glass reinforced LCS, the initial formation of delamination in E-glass reinforced LCS starts at higher load level. Under the applied shear load, a significant reduction in in-plane shear modulus is observed both for the E-glass and S-glass-reinforced LCS where the E-glass reinforced LCS shows greater reduction. The decrease in in-plane shear modulus is attributed to micro-damage accumulated in the LCS.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/110510</dc:identifier>
  <dc:identifier>oai:zenodo.org:110510</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>COMPOSITE STRUCTURES 186 347-354</dc:source>
  <dc:title>A hybrid damage assessment for E-and S-glass reinforced laminated composite structures under in-plane shear loading</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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