Numerical Study of Bio-Inspired Energy-Absorbing Device using Shear Thickening Fluid (STF)

Author(s):  
Lalin Lam ◽  
Wensu Chen ◽  
Hong Hao ◽  
Zhejian Li ◽  
Ngoc San Ha ◽  
...  
2018 ◽  
Vol 21 ◽  
pp. 242-247 ◽  
Author(s):  
Vimal Chauhan ◽  
Ashish Kumar ◽  
Neelanchali Asija Bhalla ◽  
Mohammad Danish ◽  
Vinayak Ranjan

Author(s):  
Mohamad Sleiman ◽  
Karim Hassoun ◽  
Matthias Liermann

This paper proposes a novel approach to control the velocity of a piston using dilatant fluid. Commonly, a pressure compensated flow control valve is used for this purpose. It produces excellent results but is mechanically complex. A setup is proposed that makes use of the unique properties of dilatant (i.e. shear thickening) non-Newtonian fluids. A simple tube section filled with dilatant material can be used to achieve very low sensitivity of flow rate vs. pressure difference. A numerical study shows how the power law which relates the fluid shear rate to its viscosity results in this low sensitivity of flow to pressure difference. An experimental setup was build to validate the findings using a cheap and commercially available shear thickening fluid. It was found that the dilatant material used does not have a highly pronounced dilatant property and therefore the sensitivity of flow vs. pressure difference was not as low as desired. Nevertheless, the results support the practical applicability of this novel type of velocity control.


2012 ◽  
Author(s):  
Mahesh Hosur ◽  
Norman Wagner ◽  
C. T. Sun ◽  
Vijaya Rangari ◽  
Jack Gillespie ◽  
...  

2021 ◽  
pp. 002199832098424
Author(s):  
Mohsen Jeddi ◽  
Mojtaba Yazdani

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.


Author(s):  
Qianyun He ◽  
Saisai Cao ◽  
Yunpeng Wang ◽  
Shouhu Xuan ◽  
Pengfei Wang ◽  
...  

2018 ◽  
Vol 30 (12) ◽  
pp. 123102 ◽  
Author(s):  
A. Vázquez-Quesada ◽  
N. J. Wagner ◽  
M. Ellero

2017 ◽  
Vol 7 ◽  
pp. 3369-3372 ◽  
Author(s):  
Jianhao Ge ◽  
Zhuhua Tan ◽  
Weihua Li ◽  
Hang Zhang

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