scholarly journals Stress Analysis of Filament-Wound Composite Cylinders under Combined Internal Pressure and Thermal Loading

2008 ◽  
Vol 17 (1) ◽  
pp. 096369350801700 ◽  
Author(s):  
Hasan Çallıoğlu ◽  
Emin Ergun ◽  
Oktay Demirdağ
Keyword(s):  
Internal Pressure ◽  
Thermal Loading ◽  
Composite Cylinder ◽  
Angle Variation ◽  
Filament Wound ◽  
Filament Wound Composite ◽  
Stress And Deformation ◽  
Winding Angle ◽  
Composite Cylinders ◽  
Wound Composite

An analytical solution is performed using stress function approach for multi-layered filament-wound composite cylinders subjected to combined internal pressure and thermal loading. It is assumed that there is a liquid or gas of various temperatures in the cylinders. The effects of the wind angle variation through the radial section of the cylinders are also investigated. Thus, the layers are oriented symmetrically and antisymmetrically for (0°/90°), (30°/-30°), (45°/-45°) and (60°/-60°) orientations. A computer program is developed to conduct stress and deformation analyses of composite cylinder with different winding angle. All the integration constants are found from the radial stress and displacement in the normal direction of layers.

scholarly journals Stability of Filament-Wound Composite Cylinders Subjected to Hydrostatic Pressure

2018 ◽  
Vol 36 (5) ◽  
pp. 839-847
Author(s):  
Kechun Shen ◽  
Guang Pan ◽  
Jun Jiang ◽  
Qiaogao Huang ◽  
Yao Shi
Keyword(s):  
Hydrostatic Pressure ◽  
Cylindrical Shells ◽  
Filament Winding ◽  
Filament Wound ◽  
Filament Wound Composite ◽  
Critical Buckling Pressure ◽  
Winding Angle ◽  
Composite Cylinders ◽  
Wound Composite ◽  
Composite Cylindrical Shells

In order to know the mechanical properties of filament-wound composite cylindrical shells subjected to hydrostatic pressure, solve the buckling problem of pressure hull in deep sea and provide reference for engineering design, it is necessary to research the stability of filament-wound composite cylindrical shells. Based on the theory of thin shells, the governing equations were derived. Stability of composite cylindrical shells was researched by employing Galerkin method to solve the eigenvalue equation. The critical buckling pressure was calculated for cross filament-wound, metal-filament-wound and angle filament-wound composite cylinders under hydrostatic pressure. Compared to the test results, the numerical solution was illustrated to be feasibility. On this basis, the numerical method was interacted with genetic algorithm to search optimum stacking sequence and filament winding angle. Three types of winding pattern [(±θ)12], [(±θ1)x/(±θ2)12-x] and [(±θ1)4/(±θ2)4/(±θ3)4] were investigated, . Further, the effects of winding angle and the corresponding layer number on the critical buckling pressure were evaluated. It was shown that winding angle variation affected the critical buckling pressure significantly. Stability was greatly improved by numerical optimization, and the maximum critical buckling loads are increased by 31.31%, 43.25% and 57.51% compared with the base line, respectively. As the number of design variable increased, the carrying capacity was improved markedly. The optimal critical buckling pressure was increased by 57.17%.

Study on Winding Pattern and Undulation Degree of Filament-Wound Composite Tube

2011 ◽  
Vol 341-342 ◽  
pp. 281-285
Author(s):  
Jiang Sun ◽  
Qi Xiao
Keyword(s):  
Filament Winding ◽  
Composite Tube ◽  
Filament Wound ◽  
Filament Wound Composite ◽  
Winding Angle ◽  
Wound Composite

The filament winding pattern of composite tube, the winding parameters and the undulation degree are studied in this paper. The study shows that the winding pattern mainly depends on Sp , the number of angular sections between the last circuit and the next circuit and Nc, the number of circuits performed until the fiber tow is deposited just next to the first circuit, and the changes of Nc and winding angle all have effects on the undulation degree.

Dome shape optimization of filament-wound composite pressure vessels based on hyperelliptic functions considering both geodesic and non-geodesic winding patterns

2016 ◽  
Vol 51 (14) ◽  
pp. 1961-1969 ◽  
Author(s):  
Ji Zhou ◽  
Jianqiao Chen ◽  
Yaochen Zheng ◽  
Zhu Wang ◽  
Qunli An
Keyword(s):  
Optimum Design ◽  
Basis Function ◽  
Pressure Vessel ◽  
Pressure Vessels ◽  
Filament Wound ◽  
Composite Pressure Vessel ◽  
Filament Wound Composite ◽  
Winding Angle ◽  
Dome Shape ◽  
Wound Composite

Filament-wound composite pressure vessels, owing to the advantages of their high specific strength, specific modulus and fatigue resistance, as well as excellent design performance, have been widely used in energy engineering, chemical industry and other fields. A filament-wound composite pressure vessel generally consists of two parts, a cylindrical drum part and the dome parts. In the cylindrical drum part, the filament winding angle and the winding layer thickness can be easily determined due to the regular shape. In the dome parts, however, both the winding angle and the thickness vary along the meridian line. Performance of the dome parts, which strongly depends on the effect of end-opening and the winding mode, dominates the performance of a pressure vessel. In this paper, optimum design of the dome parts is studied by considering both geodesic winding and non-geodesic winding patterns. A hyperelliptic function is adopted as the basis function for describing the meridian of the dome shape. The dome contour is optimized by taking the shape factor (S.F.) as the objective and parameters in the basis function as the design variables. A specific composite pressure vessel is taken as the numerical analysis example with varying dome shape which is to be optimized. The optimum design solution is obtained through the particle swarm optimization algorithm. It shows that an optimized dome with non-geodesic winding has better S.F. as compared with geodesic winding. Influences of the slippage coefficient and the polar opening on the S.F. are also discussed.

scholarly journals The role of winding pattern on filament wound composite cylinders under radial compression

2020 ◽  
Vol 41 (6) ◽  
pp. 2446-2454 ◽  
Author(s):  
Tales V. Lisbôa ◽  
José Humberto S. Almeida ◽  
Ingo H. Dalibor ◽  
Axel Spickenheuer ◽  
Rogério J. Marczak ◽  
...  
Keyword(s):  
Radial Compression ◽  
Filament Wound ◽  
Filament Wound Composite ◽  
Composite Cylinders ◽  
Wound Composite
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