Volume 42 Issue 12
Dec.  2021
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ZHANG Junlin, NI Yiwen, LI Qingdong, TONG Zhenzhen, ZHOU Zhenhuan, XU Xinsheng. A Symplectic Approach for Buckling Analysis of Natural Fiber Reinforced Composite Shells Under Hygrothermal Aging[J]. Applied Mathematics and Mechanics, 2021, 42(12): 1238-1247. doi: 10.21656/1000-0887.420018
Citation: ZHANG Junlin, NI Yiwen, LI Qingdong, TONG Zhenzhen, ZHOU Zhenhuan, XU Xinsheng. A Symplectic Approach for Buckling Analysis of Natural Fiber Reinforced Composite Shells Under Hygrothermal Aging[J]. Applied Mathematics and Mechanics, 2021, 42(12): 1238-1247. doi: 10.21656/1000-0887.420018

A Symplectic Approach for Buckling Analysis of Natural Fiber Reinforced Composite Shells Under Hygrothermal Aging

doi: 10.21656/1000-0887.420018
  • Received Date: 2021-01-18
  • Accepted Date: 2021-01-18
  • Rev Recd Date: 2021-11-14
  • Available Online: 2021-11-29
  • Publish Date: 2021-12-01
  • The buckling analysis of natural fiber reinforced (NFRC) cylindrical shells was performed based on Reissner’s shell theory and the symplectic approach. The governing buckling equations for axially-compressed NFRC cylindrical shells were established in the Hamiltonian system. Therefore, the original problem was reduced to a symplectic eigen-problem in the symplectic space. Accurate critical loads and analytical buckling mode shapes were directly obtained from the symplectic eigenvalues and eigensolutions. With numerical examples, the effects of hygroscopic aging on the expressions of eigensolutions were investigated. In addition, the influences of the aging time, the fiber content and the geometric parameters on the buckling behavior of NFRC cylindrical shells were discussed in detail.

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