Author： Eglitis E.
Publisher： Springer Publishing Company
ISSN： 0191-5665
Source： Mechanics of Composite Materials, Vol.46, Iss.5, 2010-12, pp. : 483-492
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Abstract
The buckling of imperfect composite cylinders under concentric and eccentric compression is investigated experimentally and numerically, with particular attention given to the imperfection sensitivity of the shells. A series of glass-fiber-reinforced plastic cylinders have been tested under different load eccentricities to validate the corresponding nonlinear numerical analyses performed in this study. A good agreement between the experimental and numerical results was achieved through use of the ABAQUS/Explicit finite-element code and the introduction of initial imperfections. Both the experimental and the numerical results show that the knockdown factor increases as the loading eccentricity grows.
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