Stability of corrugated composite noncircular cylindrical shells under external pressure |
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Authors: | N P Semenyuk N B Zhukova V V Ostapchuk |
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Institution: | (1) S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kyiv, Ukraine |
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Abstract: | Cylindrical shells consisting of cylindrical panels of smaller radius and subjected to uniform external pressure are analyzed
for stability. The geometrical parameters of the shells are approximated by Fourier series on a discrete set of points. The
Timoshenko theory of shells is used. The solution is represented in the form of trigonometric series. It is shown that short-and
medium-length shells with cylindrical panels are advantageous over circular shells. By selecting appropriate parameters of
the panels, keeping the mass of the shell constant, it is possible to achieve a significant gain in critical loads. The shells
under consideration are less effective than isotropic shells. Shells with sinusoidal corrugation under external pressure are
of no practical interest
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Translated from Prikladnaya Mekhanika, Vol. 43, No. 12, pp. 91–102, December 2007. |
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Keywords: | stability shells panels composite materials external pressure buckling load buckling mode |
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