Buckling strength of GFRP under-water vehicles

Carvelli, Valter; Panzeri, N.; Poggi, Carlo

doi:10.1016/s1359-8368(00)00063-9

Cited by 67 publications

(28 citation statements)

References 8 publications

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“…Imperfection sensitivities of naval structures have been studied by Elghazouli et al [12] who performed compression. In the same way, Carvelli et al [13] tested buckling behaviour for technological demonstrators at sea. Those studies are based, mainly, on experimental measurement of thickness or surface topography, some of them also represent reinforcement structure through a thickness variation, but in filament wound cylinders material heterogeneity is not necessarily coupled with thickness variation.…”

Section: Introductionmentioning

confidence: 98%

Influence of winding pattern on the mechanical behavior of filament wound composite cylinders under external pressure

Hernández-Moreno

Douchin²,

Collombet³

et al. 2008

Composites Science and Technology

122

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Section: Introductionmentioning

confidence: 98%

Influence of winding pattern on the mechanical behavior of filament wound composite cylinders under external pressure

Hernández-Moreno

Douchin²,

Collombet³

et al. 2008

Composites Science and Technology

122

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“…Then according to the number of layers, ply sequence is optimized by Genetic algorithm (GA) [12][13][14]. Taking into account the case of the same design parameters, such as rib geometric parameter, rib arrangement, shell thickness, destroy is most likely to occur in the middle of the AUV shell [15]. Thus only buckling behavior of the shell's middle section is studied.…”

Section: Optimizationmentioning

confidence: 99%

Optimization of Composite Cylindrical Shell Subjected to Hydrostatic Pressure

Pan

Shen

et al. 2015

Intelligent Robotics and Applications

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Abstract.Composite is used to substitute aluminum alloy as material of the underwater vehicle in this study. Nonlinear buckling behaviors of composite cylindrical underwater shell are studied using ANSYS software. Carbon/Epoxy is selected as material of the vehicle through comparative analysis. Optimization of ply sequence, thickness and angle of composite cylindrical shell subjected to hydrostatic pressure is investigated. Both buckling and material damage is considered in the optimization, the results show that buckling is the major destroy form. The vehicle's buckling pressure is greatly increased after optimization. And the vehicle's working depth has a 32% increase without changing its shape and structure.

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“…10 Collapse pressure being the end stage of buckling behavior controlled by many variables such as thickness variation and geometrical imperfections was investigated both by experimental and numerical methods. 2 Tsouvalis et al 8 numerically investigated the critical buckling behavior of hydrostatically pressurized mid-span of the composite cylinder along with FE convergence approaches. Buckling was mainly influenced by geometric imperfections such as out-of-roundness and thickness variation generated due to excess resin during manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the effect of fiber orientation on hydrostatic buckling behavior of fiber metal composite cylinder

Sumana

Sagar

Sharma

et al. 2015

Journal of Reinforced Plastics and Composites

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The external hydrostatic buckling behavior of fiber metal laminate (FML) composite cylinders was investigated numerically. The critical buckling pressure predicted by eigenvalue analysis was compared with experimental results. The numerical results showed different modes of buckling and buckling deformation for cylinders of different fiber orientation when subjected to external hydrostatic loading. FML cylinder with 0 /90 fiber orientation exhibited higher buckling strength and lower buckling deformation as compared to FML cylinders of 60 /30 , AE45 , and AE55 fiber orientations. The orientation of fiber has significant influence on the performance of FML composite cylinder as compared to fiberreinforced plastic thickness. The correlation between numerical and experimental results is discussed in terms of buckling strength, circumferential stiffness, and buckling deformations. It was observed that the cylinders were less sensitive to initial imperfections irrespective of fiber-reinforced plastic thickness. In addition, the results of finite element analysis and experimental results indicate good matches.

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Buckling strength of GFRP under-water vehicles

Cited by 67 publications

References 8 publications

Influence of winding pattern on the mechanical behavior of filament wound composite cylinders under external pressure

Influence of winding pattern on the mechanical behavior of filament wound composite cylinders under external pressure

Optimization of Composite Cylindrical Shell Subjected to Hydrostatic Pressure

Numerical analysis of the effect of fiber orientation on hydrostatic buckling behavior of fiber metal composite cylinder

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