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자료유형
학술저널
저자정보
저널정보
대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.21 No.7
발행연도
2007.7
수록면
983 - 996 (14page)

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In this paper, the elastic axisymmetric buckling of a thin, isotropic and simply supported cylindrical shell with an elastic core under axial compression has been analyzed using energy method. The nonlinear strain-displacement relations in general cylindrical coordinates are simplified using Sanders kinematic relations (Sanders, 1963) for axial compression. Equilibrium equations are obtained by using minimum potential energy together with Euler equations applied for potential energy function in cylindrical shell. To acquire stability equation of cylindrical shell with an elastic core, minimum potential energy theory and Trefftz criteria are implemented. Stability and compatibility equations for an imperfect cylindrical shell with an elastic core are also obtained by the energy method, and the buckling analysis of shell is carried out using Galerkin method. Critical load curves versus the aspect ratio are obtained and analyzed for a cylindrical shell with an elastic core. It is concluded that the application of an elastic core increases elastic stability and significantly reduces the weight of cylindrical shells.

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Abstract
1. Introduction
2. Analysis
3. Energy formulation
4. Minimum potential energy criterion
5. Stability equations
6. Axial compression
7. Cylindrical shell with axisymmetric imperfection
8. Pre?buckling analysis
9. Compatibility and stability equations
10. Application of the Galerkin method
11. Proposed prototype specifications
12. Results and discussion
13. Conclusion
References

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