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RISS 인기검색어
- 검색키워드
- 저자 : Gang Rou Peng (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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Peng, Gang Rou,Li, Weihua,Tian, Tong Fei,Ding, Jie,Nakano, Masami 한국유변학회 2014 Korea-Australia rheology journal Vol.26 No.2
Nowadays, both Magneto-rheological Fluid (MRF) and Shear Thickening Fluid (STF) have separately attracted considerable interest due to the fast reversible response to either external magnetic field or abrupt shearing loading. In this paper, we fabricated a combined phase of Magneto-rheological Shear Thickening Fluid (MRSTF), where the 25 wt% STF is applied as medium phase with the addition of varied fractions of iron particle. The investigation of the dynamic behavior of this novel material under oscillatory shear was launched in a parallel-plate rheometer. The relevance of the dynamic behavior to strain amplitude, frequency and external magnetic field were investigated and discussed. A four-parameter viscoelastic model was applied to reconstruct the mechanical behavior of the MRSTF under different working conditions, and the parameters were identified within the Matlab optimization algorithm. The comparison between the experimental data and the model prediction results indicated that the four-parameter model could predict viscoelastic material with desired accuracy. The MRSTF exhibits features of both components, while prone more to MRF with the inception of external field excitations.
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Gang Rou Peng,Weihua Li,Tongfei Tian,Jie Ding,Masami Nakano 한국유변학회 2014 Korea-Australia rheology journal Vol.26 No.2
Nowadays, both Magneto-rheological Fluid (MRF) and Shear Thickening Fluid (STF) have separatelyattracted considerable interest due to the fast reversible response to either external magnetic field or abruptshearing loading. In this paper, we fabricated a combined phase of Magneto-rheological Shear ThickeningFluid (MRSTF), where the 25 wt% STF is applied as medium phase with the addition of varied fractionsof iron particle. The investigation of the dynamic behavior of this novel material under oscillatory shear waslaunched in a parallel-plate rheometer. The relevance of the dynamic behavior to strain amplitude,frequency and external magnetic field were investigated and discussed. A four-parameter viscoelastic modelwas applied to reconstruct the mechanical behavior of the MRSTF under different working conditions, andthe parameters were identified within the Matlab optimization algorithm. The comparison between theexperimental data and the model prediction results indicated that the four-parameter model could predictviscoelastic material with desired accuracy. The MRSTF exhibits features of both components, while pronemore to MRF with the inception of external field excitations.
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Experimental and modelling study of the effect of temperature on shear thickening fluids
Tongfei Tian,Gang Rou Peng,Weihua Li,Jie Ding,Masami Nakano 한국유변학회 2015 Korea-Australia rheology journal Vol.27 No.1
This paper is a study of the effect that temperature has on a shear thickening fluid made from ethylene glycol and fumed silica, with 20%-26% weight fractions. Three typical temperatures, ranging from 20oC to 60oC, were selected to study the shear rate dependence of viscosity. The temperature tests showed that a high temperature increased the critical shear rate and lowered the shear thickening ratio. A viscosity function was proposed to represent the three characteristic regions in typical shear thickening fluid and to predict viscosity at different temperatures
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