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http://dx.doi.org/10.7782/JKSR.2013.16.1.001

Dynamic Property Evaluation of Four-Harness Satin Woven Glass/epoxy Composites for a Composite Bogie Frame  

Kim, Il Kyeom (New Transportation Systems Research Center, Korea Railroad Research Institute)
Kim, Jung Seok (New Transportation Systems Research Center, Korea Railroad Research Institute)
Seo, Sung Il (Emerging Transportation Technology Research Division Korea Railroad Research Institute)
Lee, Woo Geun (Railway System Engineering, University of Science and Technology)
Publication Information
Journal of the Korean Society for Railway / v.16, no.1, 2013 , pp. 1-6 More about this Journal
Abstract
In this study, the natural frequency and damping ratio of a four-harness satin woven glass/epoxy composite material are evaluated by means of modal tests and a finite element analysis. To achieve this goal, glass/epoxy beam specimens with different lengths and thicknesses were manufactured via autoclave curing. In the test, the maximum damping ratio was found to occur at the lowest test frequency. As the test frequency increased, the damping ratio decreased exponentially to a critical value. After that value, the damping ratio increased gradually to the maximum test frequency.
Keywords
Modal test; Composite; Natural frequency; Damping ratio;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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