Magneto-induced normal stress of magnetorheological plastomer | Zendy

Taixiang Liu | Zendy; Yangguang Xu | Zendy; Xinglong Gong | Zendy; Haoming Pang | Zendy; Shouhu Xuan | Zendy

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Magneto-induced normal stress of magnetorheological plastomer

Author(s) -

Taixiang Liu,

Yangguang Xu,

Xinglong Gong,

Haoming Pang,

Shouhu Xuan

Publication year - 2013

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4819462

Subject(s) - magnetorheological fluid , slipping , materials science , microstructure , carbonyl iron , stress (linguistics) , drop (telecommunication) , composite material , magnetic field , condensed matter physics , metallurgy , mechanics , structural engineering , physics , mechanical engineering , linguistics , philosophy , quantum mechanics , engineering

An abrupt drop phenomenon of magneto-induced normal stress of magnetorheological plastomer is reported and a microstructure dependent slipping hypothesis is proposed to interpret this interesting behavior. For polyurethane based magnetorheological plastomer sample with 70 wt.% carbonyl iron powder, the magneto-induced normal stress can reach to as high as 60.2 kPa when a 930 mT magnetic field is suddenly applied. Meanwhile, the normal stress shows unpredicted abrupt drop. Particle dynamics is used to investigate the physical generating mechanism of normal stress. The simulation result agrees well with the experimental result, indicating that the interior microstructure of iron particle aggregation plays a crucial role to the normal stress

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