Hypervelocity Impacts on Honeycomb Core Sandwich Panels Filled with Shear Thickening Fluid

Whereas most previous studies have focused on improving the penetration resistance of Shear Thickening Fluids (STFs) treated composites, in this study, the dynamic compressive response of single and multi-ply 3 D E-Glass Fiber Reinforced Polymer (GFRP) composites with the STF matrix was investigated by using a drop-weight low-velocity impact test. The experimental results revealed the STF improved the compressive and cushioning performance of the composites such that with increasing its concentration, further improvement was observed. The five-ply composite containing the STF of 30 wt% silica nanoparticles and 1 wt% carbon nanotubes (CNTs) reduced the applied peak force by 56% and 26% compared to a steel plate and five-ply neat samples, respectively. A series of repeated impacts was performed, and it was found that the performance of high-concentration composites is further decreased under this type of loading.

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Characterization of macroscopic impact-resistant behavior of shear thickening fluid impregnated ultra-high molecular weight polyethylene fiber flexible composites

Composites Communications ◽

10.1016/j.coco.2021.100756 ◽

2021 ◽

Vol 25 ◽

pp. 100756

Author(s):

Qianyu Zhang ◽

Zixuan Liu ◽

Zhigang Qin ◽

Ruosi Yan ◽

Lixia Jia

Keyword(s):

Molecular Weight ◽

High Molecular Weight ◽

Shear Thickening ◽

Shear Thickening Fluid ◽

Flexible Composites ◽

Polyethylene Fiber ◽

Ultra High Molecular Weight

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Impact resistance of shear thickening fluid/Kevlar composite treated with shear-stiffening gel

Composites Part A Applied Science and Manufacturing ◽

10.1016/j.compositesa.2017.12.019 ◽

2018 ◽

Vol 106 ◽

pp. 82-90 ◽

Cited By ~ 45

Author(s):

Qianyun He ◽

Saisai Cao ◽

Yunpeng Wang ◽

Shouhu Xuan ◽

Pengfei Wang ◽

...

Keyword(s):

Impact Resistance ◽

Shear Thickening ◽

Shear Thickening Fluid

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Study of a shear thickening fluid: the suspensions of monodisperse polystyrene microspheres in polyethylene glycol

Journal of Dispersion Science and Technology ◽

10.1080/01932691.2016.1216435 ◽

2016 ◽

Vol 38 (7) ◽

pp. 935-942 ◽

Cited By ~ 11

Author(s):

Jianbin Qin ◽

Guangcheng Zhang ◽

Xuetao Shi

Keyword(s):

Polyethylene Glycol ◽

Shear Thickening ◽

Polystyrene Microspheres ◽

Shear Thickening Fluid ◽

Monodisperse Polystyrene

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Impact Analysis of Honeycomb Core Sandwich Panels

10.1115/1.0004301v ◽

2021 ◽

Author(s):

Shah Alam

Keyword(s):

Impact Analysis ◽

Sandwich Panels ◽

Honeycomb Core

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Impact Analysis of Honeycomb Core Sandwich Panels

Volume 12: Mechanics of Solids, Structures, and Fluids ◽

10.1115/imece2020-23825 ◽

2020 ◽

Author(s):

Shah Alam ◽

Damodar Khanal

Keyword(s):

Sandwich Panels ◽

Sheet Thickness ◽

Composite Panel ◽

Face Sheet ◽

Impact Behavior ◽

Front Face ◽

Geometrical Parameters ◽

Honeycomb Core ◽

Back Face ◽

The Impact

Abstract The goal of this paper is to analyze the impact behavior among geometrically different sandwich panels shown upon impact velocities. Initially, composite model with aluminum honeycomb core and Kevlar (K29) face sheets is developed in ABAQUS/Explicit and different impact velocities are applied. Keeping other parameters constant, model is simulated with T800S/epoxy face sheets. Residual velocities, energy absorption (%), and maximum deformation depth is calculated for sandwich panel for both models at five different velocities by executing finite element analysis. Once the better material is found for face sheets, process is extended by varying the ratio of front face sheet thickness to back face sheet thickness keeping other geometrical parameters constant to find the better geometry. Also, comparison of impact responses of sandwich composite panel on different ratio of front face sheet thickness to back face sheet thickness is done and validated with other results available in literature.

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The Bending Responses of Sandwich Panels with Aluminium Honeycomb Core and CFRP Skins Used in Electric Vehicle Body

Advances in Materials Science and Engineering ◽

10.1155/2018/5750607 ◽

2018 ◽

Vol 2018 ◽

pp. 1-11 ◽

Cited By ~ 5

Author(s):

Yong Xiao ◽

Yefa Hu ◽

Jinguang Zhang ◽

Chunsheng Song ◽

Xiangyang Huang ◽

...

Keyword(s):

Electric Vehicle ◽

Failure Modes ◽

Sandwich Panels ◽

Vehicle Body ◽

Stacking Sequence ◽

Honeycomb Core ◽

Fibre Direction ◽

Element Analysis ◽

Honeycomb Sandwich ◽

Carbon Fibre Reinforced Plastic

The aim of this paper was to investigate bending responses of sandwich panels with aluminium honeycomb core and carbon fibre-reinforced plastic (CFRP) skins used in electric vehicle body subjected to quasistatic bending. The typical load-displacement curves, failure modes, and energy absorption are studied. The effects of fibre direction, stacking sequence, layer thickness, and loading velocity on the crashworthiness characteristics are discussed. The finite element analysis (FEA) results are compared with experimental measurements. It is observed that there are good agreements between the FEA and experimental results. Numerical simulations and experiment predict that the honeycomb sandwich panels with ±30° and ±45° fibre direction, asymmetrical stacking sequence (45°/−45°/45°/−45°), thicker panels (0.2 mm∼0.4 mm), and smaller loading velocity (5 mm/min∼30 mm/min) have better crashworthiness performance. The FEA prediction is also helpful in understanding the initiation and propagation of cracks within the honeycomb sandwich panels.

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