A strategy of parallel winding of circumferential ribs and helical ribs for composite cylindrical grid structures

Zhang, Peng; Han, Zhenyu; Gu, Jia-Chen; Sun, Shouzheng; Fu, Haipeng

doi:10.1016/j.compstruct.2021.114351

Cited by 8 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kumar et al adopt the method of combining GA with modal experiment, aiming at maximizing the natural frequency, and realize the optimization analysis by changing the layup ratio and layup sequence [ 18 ], which improves the fundamental frequency of composite plates fixed at one end by 15%. In [ 19 ], GA was used to optimize the ply angle of composite laminates with a given number of layers under the condition of meeting the requirement of natural frequency. Li et al [ 20 ] study the low-speed impact damage of laminated plate structures made of graphite/epoxy materials by compiling dynamic programs and analyze and predict the delamination damage and collective cracking of various laminated plate structures with various layers through self-determined failure criteria and compare with the experimental results, which has a good prediction effect.…”

Section: Related Workmentioning

confidence: 99%

Study on Structural Characteristics of Composite Smart Grille Based on Principal Component Analysis

Kong

Huazhong

Xie

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

In recent years, many scholars have conducted in-depth and extensive research on the mechanical properties, preparation methods, and structural optimization of grid structural materials. In this paper, the structural characteristics of composite intelligent grid are studied by combining theoretical analysis with experiments. According to the existing conditions in the laboratory, the equilateral triangular grid structure experimental pieces were prepared. In this paper, principal component analysis combined with nearest neighbor method was used to detect the damage of composite plates. On this basis, the multiobjective robustness optimization of the structure is carried out based on artificial intelligence algorithm, which makes the structure quality and its sensitivity to uncertain parameters lower. Particle swarm optimization (PSO) is used in neural network training. The damage characteristics of different grid structures, different impact positions, and different impact energies were studied. The results show that the structural damage types, areas, and propagation characteristics are very different when the structure is impacted at different positions, which verifies that the grid structure has a good ability to limit the damage diffusion and shows that the grid structure has a good ability to resist damage.

show abstract

Section: Related Workmentioning

confidence: 99%

Study on Structural Characteristics of Composite Smart Grille Based on Principal Component Analysis

Kong

Huazhong

Xie

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

show abstract

“…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. Moreover, the hierarchical grid-stiffened structure often features thick primary ribs.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing and mechanical properties of adjustable stiffness hierarchical orthogrid stiffened cylinders

Wang,

Chen,

Qin

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

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.

show abstract

“…Based on experimental research and engineering algorithm, Li and Chen (2016a, b, 2017) studied the compression failure mechanism of T-type and I-type stiffened panels with edge impact, and the results showed that the rounded corners of stiffened panels were prone to stratify. Zhang and Zhenyu (2021) manufactured the cylindrical grid structure and carried out uniaxial compression tests to evaluate its compressive performance. Liu and Wang (2022) investigated the wave absorption and load-bearing capacity of the grid structure.…”

Section: Introductionmentioning

confidence: 99%

The research of buckling and post-buckling behavior of bidirectional stiffened composite panel under discrete impact

Wang

Lian

et al. 2023

MMMS

View full text Add to dashboard Cite

PurposeIn this paper, an attempt is made to obtain buckling loads, ultimate bearing capacity and other required structural characteristics of grid structure panels. The numerical method for post-buckling behavior analysis of panels involving multiple invisible damages is also presented.Design/methodology/approachIn this paper, two bidirectional stiffened composite panels are manufactured and tested. Multiple discrete invisible damages are introduced in different positions of the stringers, and the experimental and simulation investigation of buckling and post-buckling were carried out on the damaged stiffened panels.FindingsThe simulation load–displacement curves are compared with the experimental results, and it is found that the simulation model can well predict the occurrence of buckling and failure loads. The strain curve shows that the rate of strain change at the damaged site is greater than that at the undamaged site, which reflects that the debond is more likely occurred at the damaged site. The simulation verifies that the panel is usually crushed due to matrix compression and fiber–matrix shear.Originality/valueIn this paper, post-buckling tests and numerical simulations of bidirectional stiffened composite panels with impact damage were carried out. Two panels with four longitudinal stringers and two transverse stringers were manufactured and tested. The buckling and post-buckling characteristics of the grid structure are obtained, and the failure mechanism of the structure is explained. This is helpful for the design of wall panel structure.

show abstract

A strategy of parallel winding of circumferential ribs and helical ribs for composite cylindrical grid structures

Cited by 8 publications

References 12 publications

Study on Structural Characteristics of Composite Smart Grille Based on Principal Component Analysis

Study on Structural Characteristics of Composite Smart Grille Based on Principal Component Analysis

Manufacturing and mechanical properties of adjustable stiffness hierarchical orthogrid stiffened cylinders

The research of buckling and post-buckling behavior of bidirectional stiffened composite panel under discrete impact

Contact Info

Product

Resources

About