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Buckling analysis of shear deformable composite conical shells reinforced by CNTs subjected to combined loading on the two-parameter elastic foundation

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Defence Technology（防务技术） 2022年第2期18卷 205-218页

作者： a.h.sofiyev N.Kuruoglu Department of Civil Engineering of Engineering Faculty Suleyman Demirel University32260IspartaTurkey Information Technology Research and Application Center Member of Consultancy Board of ITRAC Center Istanbul Commerce UniversityBeyoglu34445IstanbulTurkey Scientific Research Centers for Composition Materials of UNEC-Azerbaijan State Economic University 1001/BakuAzerbaijan Department of Civil Engineering of Faculty of Engineering and Architecture of Istanbul Gelisim University IstanbulTurkey

The main objective of this study is to investigate the buckling analysis of CCSs reinforced by CNTs subjected to combined loading of hydrostatic pressure and axial compression resting on the twoparameter elastic foundation(T-P-EF).It is one of the first attempts to derive the governing equations of the CCSs reinforced with CNTs,based on a generalized first-order shear deformation shell theory(FSDST)which includes shell-foundation *** adopting the extended mixing rule,the effective material properties of CCSs reinforced by CNTs with linear distributions are approximated by introducing some efficiency *** carbon nanotube distribution in the matrix,*** distribution(U)and V and X-types linear distribution are taken into *** stability equations are solved by using the Galerkin procedure to determine the combined buckling loads(CBLs)of the structure selected *** numerical illustrations cover CBLs characteristics of CCSs reinforced by CNTs in the presence of the ***,a parametric study is carried out to study the influences of the foundation parameters,the volume fraction of carbon nanotubes and the types of reinforcement on the CBLs.

关键词： Nanocomposites CNTs Composite conical shells Two-parameter elastic foundations Combined buckling loads Shear deformation shell theories

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Influence of elastic foundations and carbon nanotube reinforcement on the hydrostatic buckling pressure of truncated conical shells

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Applied Mathematics and Mechanics(English Edition) 2020年第7期41卷 1011-1026页

作者： a.h.sofiyev I.T.PIRMAMEDOV N.KURUOGLU Department of Civil Engineering Suleyman Demirel UniversityIsparta 32260Turkey Department of Mathematics Azerbaijan Technical UniversityBaku 1073Azerbaijan Department of Civil Engineering Gelisim UniversityIstanbul 34310Turkey

In this study,the effects of elastic foundations(EFs)and carbon nanotube(CNT)reinforcement on the hydrostatic buckling pressure(hBP)of truncated conical shells(TCSs)are *** first order shear deformation theory(FOSDT)is generalized to the buckling problem of TCSs reinforced with CNTs resting on the EFs for the first *** material properties of composite TCSs reinforced with CNTs are graded linearly according to the thickness *** Winkler elastic foundation(W-EF)and Pasternak elastic foundation(P-EF)are considered as the *** basic relations and equations of TCSs reinforced with CNTs on the EFs are obtained in the framework of the FOSDT and solved using the Galerkin *** of the innovations in this study is to obtain a closed-form solution for the hBP of TCSs reinforced with CNTs on the ***,the effects of the EFs and various types CNT reinforcements on the hBP are investigated *** obtained results are compared with the results in the literature,and the accuracy of results is confirmed.

关键词： truncated conical shell(TCS) carbon nanotube(CNT) Winkler elastic foundation(W-EF) Pasternak elastic foundation(P-EF) hydrostatic pressure buckling

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