Load-bearing capacity and failure mechanism of integrated fluted-core composite sandwich cylinders

Yang, Haiyang; Zhang, Hao; Li, Xinyu; Yin, Lianhua; Guo, Xiaogang; Fan, Hualin; Lei, Hongshuai

doi:10.1016/j.compscitech.2022.109344

Cited by 24 publications

(4 citation statements)

References 35 publications

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“…[6][7][8][9] WLTS panels (WLTSPs) have better debonding resistance than traditional sandwich structures. [10][11][12][13] WLTSPs produce long plastic deformation platforms when subjected to flat loads. 9 Multilayer superimposed WLTSPs are subjected to external loads, resulting in multi-wave peak.…”

Section: Introductionmentioning

confidence: 99%

“…Woven lattice truss structures (WLTSs) integrally woven by glass fibers, have characteristics of lightweight, multi‐function, and excellent bearing capacity 6–9 . WLTS panels (WLTSPs) have better debonding resistance than traditional sandwich structures 10–13 . WLTSPs produce long plastic deformation platforms when subjected to flat loads 9 .…”

Section: Introductionmentioning

confidence: 99%

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Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Wang,

Bai,

Yan

et al. 2023

Polymer Composites

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The woven lattice truss sandwich panels (WLTSPs) have been studied much, and this article proposes a new structure (curved woven lattice truss sandwich [CWLTS] panels). CWLTS were designed, made, and tested. The foam‐filling technique was applied to strengthen the CWLTS. Curving and foam‐filling effects to the deformation, damage, failure, and energy absorption under cylindrical and plated loadings were revealed by three‐point bending experiments. Under cylindrical loading, foam‐filling can effectively increase the load capacity, especially the CWLTS‐A. The load‐bearing capacity of the plated loading is greater than that of the cylindrical loading, and the phenomenon is significantly improved after foam filling, except for the central angle of 60° and the CWLTS‐A of 44.05°. Foam‐filling changes failure from core‐shearing to face fracture. For foam‐filled panels, the change in loading pattern results in energy absorption increase of 2.45 times for CWLTS‐B and 2.86 times for CWLTS‐A. Plated loading approximately doubles the peak load and energy absorption with two plastic hinges. The effect of foam filling on the mean crush force of the CWLTS plated loading is greater. The mechanical and energy absorption properties of the CWLTS can be improved by changing the loading mode and using foam filling, effectively increasing the applicability.Highlights Curved woven lattice truss sandwich panels were designed, made, and tested. Foam‐filling method greatly improves the bearing capacity of the CWLTS panels. Plated loading much increases the bearing capacity and energy absorption. The impact of curvature on mechanical performances is not immediately apparent.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Wang,

Bai,

Yan

et al. 2023

Polymer Composites

Self Cite

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“…The study [22] investigated numerically the mechanical response of fluted-core sandwich cylinders under quasi-static uniaxial compression load. The findings showed that sandwich cylinders with a low cell number were more susceptible to local buckling, which decreases the compression performance.…”

Section: Introductionmentioning

confidence: 99%

“…From a mechanical point of view, the out-of-plane position loses the main characteristic of cellular materials under compression, which is the progressive cell collapse, which controls significantly the deformation mechanism. Moreover, in most numerical modeling of honeycomb sandwich tubes under compression, the densification step is not addressed [22] due to difficulties encountered, such as instabilities and excessive distortion at large deformations. This remains the principal obstacle limiting the exploration of complex design material.…”

Section: Introductionmentioning

confidence: 99%

Analysis for Enhancing the Performance Characteristics of Honeycomb-Filled Tubes at Constant Mass

Benhizia,

Khennab,

Bensalem

2023

RCMA

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In this paper, assuming the lightweight design is the main requirement, an efficient design of honeycomb sandwich tubes and its quasi-static compressive properties improvement were presented. The structures are designed in SolidWorks software, consisting of two face sheets and a honeycomb core implemented in its in-plane position. The axial compression tests are performed using Abaqus software. Detailed deformation features and energy absorption characteristics during the crushing process were presented. The compressive properties of the improved structures were determined from the energy absorption efficiency curves. Additionally, mathematical formulas for predicting the quasi-static compressive properties are presented. Theoretical predictions and FEA findings were in good agreement. In comparison to the standard structure, the suggested method greatly increased the structure's strength without adding mass to the design.

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Conception of multifunctional sandwich-ply laminated composites and structural implementation through woven lattice sandwich layups

Wang,

Luo,

Yan

et al. 2024

Aerospace Science and Technology

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Load-bearing capacity and failure mechanism of integrated fluted-core composite sandwich cylinders

Cited by 24 publications

References 35 publications

Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Curved woven lattice truss sandwich panels strengthened by foams: Designing, manufacturing, and testing

Analysis for Enhancing the Performance Characteristics of Honeycomb-Filled Tubes at Constant Mass

Conception of multifunctional sandwich-ply laminated composites and structural implementation through woven lattice sandwich layups

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