Abstract
This paper investigates the effect of temperature on the ballistic limit of woven graphite/epoxy composite panels (6 in. × 4 in. × 0.25 in.) at five different temperatures: −60 C, −20 C, R.T, 75 C and 125 C. The studies were conducted by combining experimental and 3-D dynamic finite element approaches. The specimens tested were made of plain-weave IM7graphite fibers/toughened epoxy. The composite panels were impacted using an in-house gas gun. The time-histories of impact-induced dynamic strains were recorded. The damaged specimens were inspected visually and using the ultrasonic C scan method. A 3-D dynamic finite element (FE) software, with Chang-Chang composite damage model, was then used to simulate the experimental results of the ballistic impact tests. Good agreement between experimental and FE results has been achieved.
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References
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© 2012 The Society for Experimental Mechanics, Inc.
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Budhoo, Y., Delale, F., Liaw, B. (2012). Temperature Effect on Ballistic Impact of Woven Graphite/Epoxy Composites. In: Allemang, R., De Clerck, J., Niezrecki, C., Blough, J. (eds) Topics in Modal Analysis II, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2419-2_42
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DOI: https://doi.org/10.1007/978-1-4614-2419-2_42
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-2418-5
Online ISBN: 978-1-4614-2419-2
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