Buckling of cylindrical shell panels: a MAEM solution
Abstract
The meshless analog equation method, a purely mesh-free method, is applied to the buckling analysis of cylindrical shell panels. The method is based on the principle of the analog equation, which converts the three governing partial differential equations in terms of displacements into three uncoupled substitute equations, two Poisson’s equations and one plate equation, under fictitious sources. The fictitious sources are represented by series of radial basis functions (RBFs) of multiquadric type, and the substitute equations are integrated. This integration allows the representation of the sought solution by new RBFs, which approximate accurately not only the displacements but also their derivatives involved in the governing equations. Then, by inserting the approximate solution in the original differential equations and the associated boundary conditions and collocating at a predefined set of mesh-free nodal points, a linear algebraic eigenvalue problem results, the solution of which gives the buckling loads and modes. The optimal value of the shape parameter of the RBFs is obtained as that minimizing eigenvalues. The method is illustrated by analyzing several shell panels. The studied examples demonstrate the efficiency and the accuracy of the presented method.
Keywords
Meshless analog equation method (MAEM) Radial basis functions (RBFs) Elliptic partial differential equations Cylindrical shells BucklingPreview
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References
- 1.Timoshenko S., Gere J.M.: Theory of Elastic Stability, 2nd edn. McGraw-Hill, New York (1961)Google Scholar
- 2.Flügge W.: Stresses in Shells. Springer, Berlin (1962)Google Scholar
- 3.Brush D.O., Almroth B.O.: Buckling of Bars, Plates and Shells. McGraw-Hill, New York (1975)MATHGoogle Scholar
- 4.Gerard, G., Becker, H.: Handbook of Structural Stability Part III-Buckling of Curved Plates and Shells. NACA TN 3783, Washington (1975)Google Scholar
- 5.Bushnell D.: Computerized Buckling Analysis of Shells. Martinus Nijhoff Publishers, Dordrecht (1985)CrossRefGoogle Scholar
- 6.Zhang J.D., Atluri S.N.: Post-buckling analysis of shallow shells by the field-boundary element method. Int. J. Numer. Methods Eng. 26, 571–587 (1986)CrossRefGoogle Scholar
- 7.Baiz P.M., Aliabadi M.H.: Linear buckling analysis of shear deformable shallow shells by the domain boundary element method. Comput. Model. Eng. Sci. 13(1), 19–34 (2006)MathSciNetGoogle Scholar
- 8.Baiz P.M., Aliabadi M.H.: Buckling analysis of shear deformable shallow shells by the boundary element method. Eng. Anal. Bound. Elem. 31, 361–372 (2007)MATHCrossRefGoogle Scholar
- 9.Katsikadelis, J.T., Yiotis, A.J: Linear buckling analysis of cylindrical shell panels using BEM. In: Proceedings of the 8th HSTAM International Congress on Mechanics, vol. II, pp. 889–896. Patras, Greece (2007)Google Scholar
- 10.Cheng A.H.D, Golbeg M.A., Kansa E.J., Zammito G.: Exponential convergence and h-c multiquadric collocation method for partial differential equations. Numer. Methods Partial Differ. Equ. 19(5), 571–594 (2003)MATHCrossRefGoogle Scholar
- 11.Kansa E.J.: Highly accurate methods for solving elliptic partial differential equations. In: Brebbia, C.A., Divo, E., Poljak, D. (eds.) Boundary Elements XXVII, pp. 5–15. WIT Press, Southampton (2005)Google Scholar
- 12.Ferreira A.J.M., Roque C.M.C., Jorge R.M.M.: Static and free vibration analysis of composite shells by radial basis functions. Eng. Anal. Bound. Elem. 30, 719–733 (2006)MATHCrossRefGoogle Scholar
- 13.Ferreira A.J.M., Roque C.M.C., Jorge R.M.M.: Modelling cross-ply laminated elastic shells by a higher-order theory and multiquadrics. Comput. Struct. 84, 1288–1299 (2006)CrossRefGoogle Scholar
- 14.Katsikadelis J.T.: The meshless analog equation method. A new highly accurate truly mesh-free method for solving partial differential equations. In: Brebbia, C.A., Katsikadelis, J.T. (eds.) Boundary Elements and other mesh reduction methods XXVIII, pp. 13–22. WIT Press, Southampton (2006)CrossRefGoogle Scholar
- 15.Katsikadelis J.T.: The 2D elastostatic problem in inhomogeneous anisotropic bodies by the meshless analog equation method MAEM. Eng. Anal. Bound. Elem. 32, 997–1005 (2008). doi: 10.1016/j.enganabound.2007.10.016 MATHCrossRefGoogle Scholar
- 16.Katsikadelis J.T.: A generalized Ritz method for partial differential equations in domains of arbitrary geometry using global shape functions. Eng. Anal. Bound. Elem. 32(5), 353–367 (2008). doi: 10.1016/j.enganabound.2007.001 MATHCrossRefGoogle Scholar
- 17.Yiotis, A.J., Katsikadelis, J.T.: The meshless analog equation method for the solution of plate problems. In: Proceedings of the 6th GRACM International Congress on Computational Mechanics, Thessaloniki, Greece (2008)Google Scholar
- 18.Katsikadelis J.T.: The meshless analog equation method: I. Solution of elliptic partial differential equations. Arch. Appl. Mech. 79, 557–578 (2009)MATHCrossRefGoogle Scholar
- 19.Jang S.K., Bert C.W., Bert C.W., Bert C.W.: Application of differential quadrature to static analysis of structural components. Int. J. Numer. Methods Eng. 28(3), 561–577 (1989)MATHCrossRefGoogle Scholar
- 20.Katsikadelis, J.T., Platanidi, J.G.: 3D analysis of thick shells by the meshless analog equation method. In: Proceedings of the 1st International Congress of Serbian Society of Mechanics, pp. 475–484 (2007)Google Scholar
- 21.Yiotis A.J., Katsikadelis J.T.: Analysis of cylindrical shell panels. A meshless solution. Eng. Anal. Bound. Elem. 37, 928–935 (2013)MATHMathSciNetCrossRefGoogle Scholar
- 22.Budiansky B.: Notes on nonlinear shell theory. J. Appl. Mech. 35, 329–401 (1968)CrossRefGoogle Scholar
- 23.Kraus H.: Thin Elastic Shells. An Introduction to the Theoretical Foundations and the Analysis of Their Static and Dynamic Behabior. Wiley, New York (1967)Google Scholar
- 24.Leissa A.W.: Vibrations of Shells. Scientific and Technical Information Office, NASA, Washington (1973)Google Scholar
- 25.Katsikadelis J.T.: The analog equation method. A boundary-only integral equation method for nonlinear static and dynamic problems in general bodies. Int. J. Theor. Appl. Mech. Arch. Appl. Mech. 27, 13–38 (2002)MATHMathSciNetCrossRefGoogle Scholar
- 26.Ferreira A.J.M., Roque C.M.C., Martins P.A.L.S.: Analysis of thin isotropic rectangular and circular plates with multiquadrics. Strength Mater. 37(2), 163–173 (2005)CrossRefGoogle Scholar
- 27.Sarra S.A.: Integrated multiquadric radial basis function methods. Comput. Math. Appl. 51, 1283–1296 (2006)MATHMathSciNetCrossRefGoogle Scholar
- 28.Yao G., Tsai C.H., Chen W.: The comparison of three meshless methods using radial basis functions for solving fourth-order partial differential equations. Eng. Anal. Bound. Elem. 34, 625–631 (2010)MATHMathSciNetCrossRefGoogle Scholar
- 29.Hardy R.L.: Multiquadric equations of topography and other irregular surfaces. J. Geophys. Res. 76, 1905–1915 (1971)CrossRefGoogle Scholar
- 30.Franke R.: Scattered data interpolation: tests of some methods. Math. Comput. 38(157), 181–200 (1982)MATHMathSciNetGoogle Scholar
- 31.Foley T.A.: Near optimal parameter selection for multiquadric interpolation. J. Appl. Sci. Comput. 1, 54–69 (1994)MathSciNetGoogle Scholar
- 32.Rippa S.: An algorithm for selecting a good value for the parameter c in radial basis function approximation. Adv. Comput. Math. 11, 193–210 (1999)MATHMathSciNetCrossRefGoogle Scholar