Carbon fiber reinforced hierarchical orthogrid stiffened cylinder: Fabrication and testing

Wu, Hao; Changlian, Lai; Sun, Fangfang; Li, Ming; Ji, Bin; Wei, Weiyi; Liu, Debo; Zhang, Xi; Fan, Hualin

doi:10.1016/j.actaastro.2018.01.064

Cited by 38 publications

(6 citation statements)

References 14 publications

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“…[11][12][13][14] In practice, researchers have combined the hierarchical design with composite materials to construct lightweight, fullcomposite hierarchical gird-stiffened panels for anti-blast protective doors. [15][16][17][18][19] With advancements in manufacturing technology, carbon fiber-reinforced polymer hierarchical isogrid stiffened cylinders 20 and hierarchical orthogrid stiffened cylinders 21 have been designed, manufactured, and tested. Compared with conventional composite gridstiffened cylinders, these hierarchical grid-stiffened cylinders exhibit improved load-bearing capability and efficiency and have a simpler manufacturing process than CFRP lattice sandwich cylinders.…”

Section: Introductionmentioning

confidence: 99%

“…The current manufacturing process for hierarchical grid-stiffened cylinders typically involves wet or dry filament winding accompanied by a co-curing process. 21 However, due to the lattice structure characteristics, continuous fibers inevitably accumulate at the intersection during the winding process. Although strategies such as changing fiber paths, 22 cutting fibers, 23,24 or using interlocking technology 25 have been employed to minimize material accumulation, their effectiveness is limited.…”

Section: Introductionmentioning

confidence: 99%

“…The current manufacturing process for hierarchical grid‐stiffened cylinders typically involves wet or dry filament winding accompanied by a co‐curing process 21 . However, due to the lattice structure characteristics, continuous fibers inevitably accumulate at the intersection during the winding process.…”

Section: Introductionmentioning

confidence: 99%

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Manufacturing and mechanical properties of adjustable stiffness hierarchical orthogrid stiffened cylinders

Wang,

Chen,

Qin

et al. 2024

Polymer Composites

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Modular spacecraft offer promising prospects in the aerospace industry due to their ability to adapt to complex missions and diverse space environments. Nevertheless, such spacecraft may face load‐bearing structure adaptation issues caused by the changes in load demand when replacing sub‐modules for various missions. This necessitates the re‐design and manufacturing of load‐bearing structures, resulting in significant increases in product cycles and costs. To overcome this challenge, innovative composite hierarchical orthogrid stiffened cylinders (CHOSCs) which offer adjustable stiffness and strength to suit various mission requirements are proposed. To investigate the stiffness and strength adjustability, high‐precision composite orthogrid stiffened cylinder (COSC), CHOSC with three primary ribs (T‐CHOSC), and CHOSC with four primary ribs (F‐CHOSC) were manufactured and tested. The results demonstrate that CHOSCs exhibit stiffness and strength adjustability and significantly improve the cylinder's load‐bearing efficiency. Furthermore, a finite element model based on the Hashin damage criterion was employed to capture the end failure of the primary ribs and the local basic rib fractures near the cylinder end. CHOSCs present a feasible solution to the load‐bearing structure adaptation issues caused by the changes in load demand when replacing sub‐modules for various missions and hold significant potential for advancing the aerospace industry.Highlights Composite hierarchical orthogrid stiffened cylinders (CHOSCs) are proposed. High‐precision CHOSCs are manufactured by combined metal molds. Load‐bearing capacity and failure behavior are investigated. CHOSCs exhibit stiffness adjustability and load‐bearing efficiency. CHOSCs could solve the structure adaptation issues in modular spacecraft.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Manufacturing and mechanical properties of adjustable stiffness hierarchical orthogrid stiffened cylinders

Wang,

Chen,

Qin

et al. 2024

Polymer Composites

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“…At present, the filament winding tubes are mostly rigid composite materials, [5][6][7] and in the forming process, [8][9][10] the research mainly focus on fiber-wound circular tubes. In the research of mechanical properties of rigid composites, based on the three-dimensional anisotropic elastic theory, Bakaiyan et al 11 analyzed the stress distribution and deformation characteristics of the composite circular tube under the temperature field and internal pressure.…”

Section: Introductionmentioning

confidence: 99%

Establishment and verification of theoretical model for forming design of balanced curved rubber hose

Guan

Shuai

2020

Polymers and Polymer Composites

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This article focuses on the establishment of theoretical model for the formation of balanced curved rubber hose under pressure. According to the rotation angle of the cord along the axial direction in the curved rubber hose is the same as that in the straight hose before forming, the theoretical model of the straight hose length was established. Then based on the thin shell theory without considering bending moments and shear force, and considering the deformation characteristics of the rope structure and the mechanical equilibrium angle of the hose, the theoretical model of the balance performance was established. According to the theoretical model, the influence of structural parameters of curved hose on the length of the straight hose and the balance performance of hose was studied. Eventually, the finite element model was established to simulate the deformation process of the curved hose. Based on the calculation results of the theoretical and simulation model, the experiment of forming and balance performance of the curved hose was carried out. The experimental results are in good agreement with the theoretical and simulation model.

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“…Generally, the hierarchical stiffened shell is composed of the skin, major stiffeners (with larger sizes), and minor stiffeners (with smaller sizes). [22][23][24][25][26][27][28][29] The typical buckling modes for hierarchical stiffened shells are the global buckling mode, the partial global buckling mode (happens between the adjacent major stiffeners), skin local buckling mode, stiffener local buckling mode, and plastic buckling mode. 25 In order to investigate the outstanding load-carrying capacity of hierarchical stiffened panels, numerical and experimental studies have been carried out by Quinn et al, [30][31][32] and corresponding design guidelines of hierarchical stiffened panels were also given by Houston et al 33 Wang et al 21 developed a novel hierarchical stiffened shell reinforced by orthogrid major stiffeners and triangle minor stiffeners and Zhao et al 24 developed a novel one reinforced by triangle major and minor stiffeners, which both improved the bucking loads of stiffened shells significantly.…”

Section: Introductionmentioning

confidence: 99%

Buckling surrogate-based optimization framework for hierarchical stiffened composite shells by enhanced variance reduction method

Tian

Zhang

et al. 2019

Journal of Reinforced Plastics and Composites

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The surrogate-based optimization of hierarchical stiffened composite shells against buckling is a typical multimodal and multivariables optimization problem. To improve the computational efficiency and global optimizing ability of the surrogate-based optimization of hierarchical stiffened composite shells, an enhanced variance reduction method based on Latinized partially stratified sampling and multifidelity analysis methods is proposed in this paper and then integrated into the surrogate-based optimization framework. In the offline step of the optimization framework, candidate pairing strategies of design variables are generated by Latinized partially stratified sampling and compared by performing priori optimizations based on the low-fidelity analysis method, and the optimal pairing strategy is therefore determined. On the basis of the optimal pairing strategy, the surrogate-based optimization is carried out using the highfidelity analysis method in the online step. With less computational cost in the offline step, the proposed enhanced variance reduction method overcomes the limitation of Latinized partially stratified sampling that the optimal pairing strategy is not obvious in complex problems. Then, extensive optimization examples are carried out to verify the efficiency and effectiveness of the proposed optimization framework. Given an approximate computational cost, the optimal buckling result of the proposed framework using enhanced variance reduction method increases by 18.2% than that of the traditional framework based on Latin hypercube sampling. In particular, the advantage of enhanced variance reduction method in the space-filling ability is highlighted in comparison to Latin hypercube sampling. When achieving an approximate global optimal solution, the proposed framework reduces the total computational cost by 76.3% than the traditional framework. Finally, the numerical implementation of asymptotic homogenization method is used herein for the accurate prediction of effective stiffness coefficients of the initial design and optimal results. Through comparison, it is concluded that the high axial stiffness and bending stiffness are the main mechanism for the high loadcarrying capacity of optimal results.

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Carbon fiber reinforced hierarchical orthogrid stiffened cylinder: Fabrication and testing

Cited by 38 publications

References 14 publications

Manufacturing and mechanical properties of adjustable stiffness hierarchical orthogrid stiffened cylinders

Manufacturing and mechanical properties of adjustable stiffness hierarchical orthogrid stiffened cylinders

Establishment and verification of theoretical model for forming design of balanced curved rubber hose

Buckling surrogate-based optimization framework for hierarchical stiffened composite shells by enhanced variance reduction method

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