Numerical simulation of shear jamming in a shear thickening fluid under impact

Cui, Xiaoyu1,2; Wang, Hongjian2; Ye, Lin3; Fu, Kunkun1

2023-03-01

10.1007/s00397-023-01391-2

RHEOLOGICA ACTA   Impact Factor & Quartile

0035-4511

1435-1528

Shear thickening fluids (STFs) exhibit a liquid-solid-like transition under impact because of the formation and evolution of shear jamming in the STFs. This study aims to develop a computational fluid dynamics (CFD) model to simulate the shear jamming formation and evolution in a concentrated STF under impact for the optimum design of the STF applications. The STF was defined with a strain rate-dependent viscosity and compressibility. In the CFD model, the interface between air and STF was modelled by the volume of fluid method to solve the multiphase flow problem. In addition, the impact penetration process of an impactor was reproduced by the change of the fluid domain shape with a dynamic mesh method. The shear jamming was demonstrated clearly by a high strain-rate region caused by the impact. The numerical results were comparable to the experimental observations of shear jamming evolution using a high-speed camera. Furthermore, the numerical results showed that the effect of the STF's dimensions (depth and diameter) on the expansion rate of the shear jamming was insignificant.

Shear thickening fluid (STF) Shear jamming High strain rate Computational fluid dynamics Impact

SCI

English

Others

National Natural Science Foundation of China[12202316]

Mechanics

Mechanics

WOS:000953161800001

SPRINGER

PHYSICS

Web of Science

1.Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R China
2.Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia
3.Southern Univ Sci & Technol, Sch Syst Design & Intelligent Mfg, Shenzhen 518055, Guangdong, Peoples R China

Cui, Xiaoyu,Wang, Hongjian,Ye, Lin,et al. Numerical simulation of shear jamming in a shear thickening fluid under impact[J]. RHEOLOGICA ACTA,2023.

Cui, Xiaoyu,Wang, Hongjian,Ye, Lin,&Fu, Kunkun.(2023).Numerical simulation of shear jamming in a shear thickening fluid under impact.RHEOLOGICA ACTA.

Cui, Xiaoyu,et al."Numerical simulation of shear jamming in a shear thickening fluid under impact".RHEOLOGICA ACTA (2023).