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vary slightly, and the greatest difference is observed for reinforcement angles of 90°.
For shells made from material with a weakly pronounced anisotropy, a slight effect
of the preliminary axial loading on the critical value of the dynamic external pressure
is observed, though a difference in buckling forms of a shell is noted.
Acknowledgements The method of calculating composite cylindrical shells under combined loads
was developed at a financial support of the Ministry of Science and Higher Education of the Russian
Federation (task 0729-2020-0054), and numerical analysis of loss of stability of shells was carried
out at a financial support of RFBR grants ((№ 18-08-01234, № 19-08-00828).
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