A procedure of numerical solution of problems on the dynamic deformation of composite shells of revolution is developed. The procedure is oriented on evaluating the ultimate deformability of the shells in relation to their reinforcement structure and the intensity of loading. An energetically consistent resolving system of equations of dynamics for composite shells of revolution is constructed on the basis of the virtual displacement principle. The method of numerical solution of the initial boundary value problem is based on an explicit variational-difference scheme. The results obtained in verification of the procedure and in analyzing the effect of reinforcement angles and alternation pattern of layers on the ultimate deformability of cylindrical laminated composite shells under explosive loadings of various intensity are presented.
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Acknowledgments
This study was financed partly by the State Program for the Support of Scientific Schools of the Russian Federation (grant NSh-2843.2012.8) and by the Russian Fund for Basic Research (grant 13-08-00742).
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 50, No. 2, pp. 313-326, March-April, 2014.
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Abrosimov, N.A., Elesin, A.V. & Novoseltseva, N.A. Numerical Analysis of the Effect of Reinforcement Structure on the Dynamic Behavior and Ultimate Deformability of Composite Shells of Revolution. Mech Compos Mater 50, 223–232 (2014). https://doi.org/10.1007/s11029-014-9409-z
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DOI: https://doi.org/10.1007/s11029-014-9409-z