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Temperature Effects on the Impact Behavior of Fiberglass and Fiberglass/Kevlar Sandwich Composites

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Abstract

Impact tests were performed on sandwich composites with Fiberglass and Fiberglass/Kevlar face sheets subjected to varied temperatures. A number of specimens were tested at −50 to 120 °C temperature range and at 20, 30, and 45 J low velocity energy levels. Impact properties of the sandwich composites that were evaluated include maximum normal and shear stresses, maximum energy absorption, non-dimensional parameters (AEMP, PI, and RD), and compression after impact strength. Composite specimens tested have a urethane foam filled honeycomb center sandwiched between a variation of four layered Fiberglass and Kevlar/Fiberglass face sheets in a thermoset polymer epoxy matrix. Results showed that the impact performance of these sandwich composites changed over the range of temperature considered and with the addition of a Kevlar layer.

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Acknowledgements

The authors wish to thank Eric Torkelson and Brandon Pulst for their help in sample preparation and experiments, and NASA Space Grant Fellowship Program for providing support for this study. Their contributions to this study are greatly appreciated.

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Correspondence to Mohammad Mahinfalah.

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Halvorsen, A., Salehi-Khojn, A., Mahinfalah, M. et al. Temperature Effects on the Impact Behavior of Fiberglass and Fiberglass/Kevlar Sandwich Composites. Appl Compos Mater 13, 369–383 (2006). https://doi.org/10.1007/s10443-006-9023-x

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  • DOI: https://doi.org/10.1007/s10443-006-9023-x

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