Abstract
This paper investigates the effect of low temperatures on the ballistic limit of hybrid woven composite panels (6×4×0.25in.) at three different temperatures: R.T, −20°C and −60°C. Studies were also done on the stacking sequence and its effect on the ballistic limit at the above stated temperature. The studies were conducted by combining experimental and 3-D dynamic finite element approaches. The specimens tested were made of plain-weave hybrid S2 glass-IM7graphite fibers/toughened epoxy. The composite panels were impacted using an in-house gas gun. The time-histories of impact-induced dynamic strains was 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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© 2013 The Society for Experimental Mechanics, Inc.
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Budhoo, Y., Delale, F., Liaw, B. (2013). Effect of Low Temperatures on the Ballistic Limit of Hybrid Woven Composites. In: Chalivendra, V., Song, B., Casem, D. (eds) Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4238-7_58
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DOI: https://doi.org/10.1007/978-1-4614-4238-7_58
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