ON THE TORSIONAL BUCKLING MOMENT OF CYLINDRICAL SHELLS CONSISTING OF FUNCTIONALLY GRADED MATERIALS RESTING ON THE PASTERNAK-TYPE SOIL Pasternak tipli qruntda yerləşən funksional qradasiyalı materiallardan (FGM) hazırlanmış silindrik örtüklərin böhran burucu momenti haqqında О критическом крутящем моменте цилиндрических оболочек из функциональноградированных материалов (FGM), опирающихся на грунт типа Пастернака

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Sofiyev A., Kadıoğlu F., Khalilov I., Sedighi H., Vergul T., Yenialp R.

SOCAR Proceedings, sa.1, ss.16-22, 2022 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2022
  • Doi Numarası: 10.5510/ogp2022si100695
  • Dergi Adı: SOCAR Proceedings
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, Compendex
  • Sayfa Sayıları: ss.16-22
  • Anahtar Kelimeler: Functionally graded materials, Cylindrical shell, Buckling, Critical torsional moment, Pasternak-type soil
  • İstanbul Ticaret Üniversitesi Adresli: Hayır

Özet

In this study, the buckling analysis of cylindrical shells made of functionally graded materials (FGMs) under the torsional moment resting on the Pasternak-type soil is performed. After establishing the linear constitutive relations of FGM cylindrical shells within the framework of the modified Donnell type shell theory, the governing equations of FGM cylindrical shells under the torsional moment are derived considering the influence of Pasternak-type soil. Analytical formula for the torsional moment is obtained by choosing the approximation functions that satisfies the boundary conditions in an integral sense. From the obtained formula, the formulas for the critical torsional moment in the presence of Winkler soil and absence of soils are obtained as a special case. Variations of critical torsional moment for different soil coefficients, volume fraction ratio and shell characteristics are investigated in detail.