CFRP Effect on the Buckling Behavior of Dented Cylindrical Shells

AYDIN A. C., Yaman Z., Agcakoca E., KILIÇ M., Maali M., Dizaji A. A.

INTERNATIONAL JOURNAL OF STEEL STRUCTURES, cilt.20, sa.2, ss.425-435, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1007/s13296-019-00294-4
  • Dergi Adı: INTERNATIONAL JOURNAL OF STEEL STRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Compendex, INSPEC
  • Sayfa Sayıları: ss.425-435
  • Anahtar Kelimeler: Cylindrical shell, External pressure, Dent, Test, CFRP strips, CIRCULAR STEEL TUBES, POSTBUCKLING BEHAVIOR, CONICAL SHELLS, IMPERFECTIONS
  • Atatürk Üniversitesi Adresli: Evet

Özet

Considering that the use of thin-walled shells is expanding every day, it is important to examine the problem of instability in this form of structure. Many steel structures such as high-water tanks, water and oil reservoirs, marine structures, and pressure vessels, including shell elements, are under stress tension. In addition, shell elements are subject to instability owing to the loads applied. Ten thin-walled cylindrical shell specimens in two groups with different dent depths of t(c) and 2t(c), and the different dent number subject to uniform external pressure were tested in the present research (t(c) is the thickness of cylindrical shell). The samples were modified to include either one or two dent line with amplitudes of h/3 in height (h the height of cylinder shell). Moreover, CFRP Strips on the dent depth was used in one of the groups. The results of testing under different theories and codes are compared.