| Wrinkling in graded core/shell systems using symplectic formulation |
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| 作者姓名： | Yaqi GUO Guohua NIE |
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| 作者单位： | School of Aerospace Engineering and Applied Mechanics,Tongji University |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (No. 11972259)； |
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| 摘 要： | Wrinkles in flat graded elastic layers have been recently described as a timevarying Hamiltonian system by the energy method. Cylindrical core/shell structures can also undergo surface instabilities under the external pressure. In this study, we show that by treating the radial direction as a pseudo-time variable, the graded core/shell system with radially decaying elastic properties can also be described within the symplectic framework. In combination with the shell buckling equation, the prese...
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