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    Magneto-dependent stress relaxation of magnetorheological gels

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    Xu+et+al_2017_Smart_Mater._Struct._10.1088_1361-665X_aa89ac.pdf
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    Type
    Article
    Authors
    Xu, Yangguang
    Liu, Taixiang
    Liao, G J
    Lubineau, Gilles cc
    KAUST Department
    Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017-09-01
    Permanent link to this record
    http://hdl.handle.net/10754/625496
    
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    Abstract
    The stress relaxation behaviors of magnetorheological (MR) gels under stepwise shear loading are systematically investigated. The particle-enhanced effect, the magneto-induced effect, and the temperature-enhanced effect on the stress relaxation of MR gels are discussed. For further analysis of the magneto-induced stress relaxation mechanism in MR gels, a phenomenological model is established to describe the stress relaxation behavior of the matrix and the magnetic particle chains. All characteristic parameters introduced in the model, i.e. relaxation time, instantaneous modulus, and stable modulus, have well-defined physical meanings and are fitted based on the experimental results. The influence of each parameter on the macroscopic response is discussed and it is found that the relaxation stress induced by the magneto-mechanical coupling effect plays an important role in the stress relaxation process of MR gels.
    Citation
    Xu Y, Liu T, Liao GJ, Lubineau G (2017) Magneto-dependent stress relaxation of magnetorheological gels. Smart Materials and Structures. Available: http://dx.doi.org/10.1088/1361-665x/aa89ac.
    Sponsors
    The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST), the National Natural Science Foundation of China (Grant Nos. 11502256, 11502255, 11602242), and the key project
    Publisher
    IOP Publishing
    Journal
    Smart Materials and Structures
    DOI
    10.1088/1361-665x/aa89ac
    Additional Links
    http://iopscience.iop.org/article/10.1088/1361-665X/aa89ac
    ae974a485f413a2113503eed53cd6c53
    10.1088/1361-665x/aa89ac
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program

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