The Evaluation of Absorption Performance of Magneto-Rheological (MR) Elastomer

Abstract:

This study examines the relation between the thickness of a specimen and the weight of an impactor for evaluating the shock absorption performance of magneto-rheological (MR) elastomers with and without a magnetic field. The shock absorption performance can be evaluated by calculating impact energy. The MR elastomer is a smart material and its mechanical properties change under the influence of a magnetic field. The drop impact test is performed to evaluate the amount of shock absorption of the MR elastomer for each test condition. Tests are also performed by varying the magnetic field during impact to improve the shock absorption performance of the MR elastomer, which is related to impact load. The results show a better shock absorption performance with a thicker MR elastomer, lighter impactor, and without a magnetic field. Also, the magnitude of impact and the time duration for stabilization are improved when the magnetic field is varied during the test.

• Periodical: Advanced Materials Research (Volume 1095)
• Pages: 483-489
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1095.483
• Online since: March 2015
• Authors: Kwang Hee Lee, Kyung Sik Jung, Chul Hee Lee*
• Keywords: Drop Impact Test, Magnetic Field, Magneto-Rheological (MR) Elastomer, Shock Absorption Performance

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