Journal
POLYMERS
Volume 12, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/polym12112435
Keywords
magnetorheological elastomer; magnetorheological effect; quasi-static compression; magneto-hyperelastic model
Categories
Funding
- National Natural Science Foundation of China (NSFC) [11202154]
- Fundamental Research Funds for the Central Universities of China [WUT-2019-zy-233, WUT-2020III027GX]
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A new magneto-hyperelastic model was developed to describe the quasi-static compression behavior of silicone rubber-based isotropic magnetorheological elastomer (MRE) in this work. The magnetization property of MRE was characterized by a vibrating sample magnetometer (VSM), and the quasi-static compression property under different magnetic fields was tested by using a universal testing machine equipped with a magnetic field accessory. Experimental results suggested that the stiffness of the isotropic MRE increased with the magnetic flux density within the tested range. Based on experimental results, a new magneto-hyperelastic model was established by coupling the Ogden hyperelastic model, the magnetization model and the magneto-induced modulus model based on a magnetic dipole theory. The results show that the proposed new model can accurately predict the quasi-static compression property of the isotropic MRE under the tested magnetic flux density and strain ranges using only three model parameters.
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