Nonlinear buckling and postbuckling behavior for a 3D braided composite cylindrical shell of finite length subjected to lateral pressure, hydrostatic pressure, or external liquid pressure in thermal environments have been presented in this paper. Based on a new micromacromechanical model, a 3D braided composite may be treated as a cell system and the geometry of each cell is deeply dependent on its position in the cross section of the cylindrical shell. The material properties of the epoxy are expressed as a linear function of temperature. The governing equations are based on Reddy’s higher order shear deformation shell theory with a von Kármán–Donnell type of kinematic nonlinearity and including thermal effects. A singular perturbation technique is employed to determine the buckling pressure and postbuckling equilibrium paths. The numerical illustrations concern the postbuckling behavior of perfect and imperfect braided composite cylindrical shells with different values of geometric parameter and of fiber volume fraction in different cases of thermal environmental conditions. The results show that the shell has lower buckling pressures and postbuckling paths when the temperature-dependent properties are taken into account. The results reveal that the temperature changes, the fiber volume fraction, and the shell geometric parameter have a significant effect on the buckling pressure and postbuckling behavior of braided composite cylindrical shells.
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December 2009
Research Papers
Nonlinear Buckling and Postbuckling Behavior of 3D Braided Composite Cylindrical Shells Under External Pressure Loads in Thermal Environments
Zhi-Min Li,
Zhi-Min Li
School of Mechanical Engineering,
e-mail: zmli@sjtu.edu.cn
Shanghai Jiao Tong University
, Shanghai 200240, China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University
, Shanghai 200240, China
Search for other works by this author on:
Zhong-Qin Lin,
Zhong-Qin Lin
School of Mechanical Engineering,
Shanghai Jiao Tong University
, Shanghai 200240, China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University
, Shanghai 200240, China
Search for other works by this author on:
Guan-Long Chen
Guan-Long Chen
School of Mechanical Engineering,
Shanghai Jiao Tong University
, Shanghai 200240, China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University
, Shanghai 200240, China
Search for other works by this author on:
Zhi-Min Li
School of Mechanical Engineering,
Shanghai Jiao Tong University
, Shanghai 200240, China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University
, Shanghai 200240, Chinae-mail: zmli@sjtu.edu.cn
Zhong-Qin Lin
School of Mechanical Engineering,
Shanghai Jiao Tong University
, Shanghai 200240, China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University
, Shanghai 200240, China
Guan-Long Chen
School of Mechanical Engineering,
Shanghai Jiao Tong University
, Shanghai 200240, China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University
, Shanghai 200240, ChinaJ. Pressure Vessel Technol. Dec 2009, 131(6): 061206 (12 pages)
Published Online: October 28, 2009
Article history
Received:
March 13, 2009
Revised:
July 15, 2009
Published:
October 28, 2009
Citation
Li, Z., Lin, Z., and Chen, G. (October 28, 2009). "Nonlinear Buckling and Postbuckling Behavior of 3D Braided Composite Cylindrical Shells Under External Pressure Loads in Thermal Environments." ASME. J. Pressure Vessel Technol. December 2009; 131(6): 061206. https://doi.org/10.1115/1.4000362
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