Abstract
Polymeric foams have been extensively used in shock isolation applications because of their superior shock or impact energy absorption capability. In order to meet the shock isolation requirements, the polymeric foams need to be experimentally characterized and numerically modeled in terms of material response under shock/impact loading and then evaluated with experimental, analytical, and/or numerical efforts. Measurement of the dynamic compressive stress-strain response of polymeric foams has become fundamental to the shock isolation performance. However, radial inertia has become a severe issue when characterizing soft materials. It is even much more complicated and difficult to address the radial inertia effect in soft polymeric foams. In this study, we developed an analytical method to calculate the additional stress induced by radial inertia in a polymeric foam specimen. The effect of changing profile of Poisson’s ratio during deformation on radial inertia was investigated. The analytical results were also compared with experimental results obtained from Kolsky compression bar tests on a silicone foam.
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References
Kolsky, H.: An investigation of the mechanical properties of materials at very high rates of loading. Proc. R. Soc. Lond. B62, 679–700 (1949)
Dharan, C.K.H., Hauser, F.E.: Determination of stress-strain characteristics at very high strain rates. Exp. Mech. 10, 370–376 (1970)
Forrestal, M.J., Wright, T.W., Chen, W.: The effect of radial inertia on brittle samples during the split Hopkinson pressure bar test. Int. J. Impact Eng. 34, 405–411 (2006)
Song, B., Ge, Y., Chen, W.W., Weerasooriya, T.: Radial inertia effects in Kolsky bar testing of extra-soft specimens. Exp. Mech. 47, 659–670 (2007)
Warren, T.L., Forrestal, M.J.: Comments on the effect of radial inertia in the Kolsky bar test for an incompressible material. Exp. Mech. 50, 1253–1255 (2010)
Acknowledgement
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. The views expressed in this article do not necessarily represent the views of the U.S. Department of Energy or the United States Government.
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© 2019 The Society for Experimental Mechanics, Inc.
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Song, B., Sanborn, B., Lu, WY. (2019). Radial Inertia Effect on Dynamic Compressive Response of Polymeric Foam Materials. In: Kimberley, J., Lamberson, L., Mates, S. (eds) Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95089-1_13
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DOI: https://doi.org/10.1007/978-3-319-95089-1_13
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