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

ZHANG Junlin; NI Yiwen; LI Qingdong; TONG Zhenzhen; ZHOU Zhenhuan; XU Xinsheng

doi:10.21656/1000-0887.420018

Volume 42 Issue 12

Dec. 2021

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Article Navigation > Applied Mathematics and Mechanics > 2021 > 42(12): 1238-1247

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

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

doi: 10.21656/1000-0887.420018

1.
State Key Laboratory of Structural Analysis of Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, Liaoning 116024, P.R.China
2.
MOE Key Laboratory of Impact and Safety Engineering, Faculty of Mechanical Engineering & Mechanics, Ningbo University, Ningbo, Zhejiang 315211, P.R.China
3.
College of Locomotive and Rolling Stock Engineering, Dalian Jiaotong University, Dalian, Liaoning 116028, P.R.China

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

Abstract

Abstract

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.
- symplectic method,
- cylindrical shell,
- critical load,
- buckling,
- natural fiber reinforced material,
- hygrothermal aging

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References(14)

References

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