Fabrication and Characterization of Natural Rubber-Based Magnetorheological Elastomers at Large Strain for Base Isolators
Joint Authors
Kim, In-Ho
Jung, Hyung-Jo
Lee, Chan Woo
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-04
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
To withstand harsh conditions and have a moderate strength, it is desirable to use natural rubber for base isolators.
In addition, previous studies have measured the magnetorheological (MR) effect under low-strain range, mostly within 10%.
In the reality, it is necessary to evaluate the performance under large-strain range for base isolators.
In this study, material properties of natural rubber-based MREs with various mixing ratios were evaluated under large-strain range (~100%).
In the first step, MREs with various iron ratios were fabricated and evaluated to observe the MR effect according to the ratio and arrangement of iron powder.
As a result, the highest MR effect (22.0% at 100% strain) and damping ratio (10.29%) were observed in the sample with 35% iron ratio, and the MR effect of the isotropic and the anisotropic MRE did not show significant difference under large-strain (50~100%).
In the second step, MRE samples containing the optimum iron ratio (investigated in the first step) and various mixing ratios of carbon black and naphthenic oil were prepared.
As a result, the MRE containing 60phr of carbon black and 40phr of naphthenic oil had the highest MR effect (33.8% at 100% strain).
Compared to the case without additives, it showed an obvious improvement.
American Psychological Association (APA)
Lee, Chan Woo& Kim, In-Ho& Jung, Hyung-Jo. 2018. Fabrication and Characterization of Natural Rubber-Based Magnetorheological Elastomers at Large Strain for Base Isolators. Shock and Vibration،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1215434
Modern Language Association (MLA)
Lee, Chan Woo…[et al.]. Fabrication and Characterization of Natural Rubber-Based Magnetorheological Elastomers at Large Strain for Base Isolators. Shock and Vibration No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1215434
American Medical Association (AMA)
Lee, Chan Woo& Kim, In-Ho& Jung, Hyung-Jo. Fabrication and Characterization of Natural Rubber-Based Magnetorheological Elastomers at Large Strain for Base Isolators. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1215434
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215434