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- W4385614642 endingPage "117434" @default.
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- W4385614642 abstract "Composite materials have been widely used in the field of pressure shells for underwater vehicles due to their great potential. This paper presents an experimental study of composite cylindrical shells with and without the circular hole subjected to external hydrostatic pressure. The mechanical response of the composite cylindrical shells under external hydrostatic pressure is recorded by the strain acquisition system, and the buckling deformation process of the shells is also captured by the high-speed camera system. According to the experimental results, the entire compression process of the shell can be divided into three stages based on variations in strain. Based on the findings that buckling starts very early and accounts for about 35% of the entire process, the concept of initial buckling pressure is proposed to distinguish the critical point of the shell transition from a stable state to an unstable state. It is found that the damage positions of the three shells all correspond to the troughs in the buckling waveform, and the final fiber breakage of the perforated shells with the reinforcements both occur near the reinforcement component. Finally, a comparative analysis of the strain response of the shell with the hole and the complete shell is carried out to explore their similarities and differences. The experimental results in this paper provide valuable information for the design of perforated composite pressure shells for underwater vehicles." @default.
- W4385614642 created "2023-08-07" @default.
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- W4385614642 date "2023-10-01" @default.
- W4385614642 modified "2023-10-12" @default.
- W4385614642 title "Experimental study on buckling behavior of composite cylindrical shells with and without circular holes under hydrostatic pressure" @default.
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- W4385614642 doi "https://doi.org/10.1016/j.compstruct.2023.117434" @default.
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