Critical loads of shells with high-modulus reinforcement |
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Authors: | G D Gavrilenko V I Matsner |
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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: | The analytical method developed to determine the upper and lower critical stresses is applied to cylindrical shells reinforced
with stringers and rings. Buckling modes typical of shells reinforced with discrete ribs are considered. The minimum critical
loads are determined and compared with available experimental data. Perfect and imperfect ribbed shells with high-modulus
reinforcement are studied. It is proved that the effect of small axisymmetric imperfections in such shells is not so drastic
as in isotropic shells. Ribs made of a high-modulus material can enhance the stability of shells by a factor of tens |
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