Abstract
Recent interest in blast mitigation has given rise to the development of many novel materials and systems. Sandwich materials composed of a soft deformable core sandwiched between two strong face sheets and multilayer structures with alternating deformable and stiff layers have been actively explored for blast mitigation. Understanding the deformation, failure and energy absorption characteristics of such systems is critical for their successful design and application. The present work focuses on understanding the high strain rate response of multilayer structures in which the soft deformable layer is made of micro-balloon filled aluminum. High strain rate experiments are performed using a split Hopkinson pressure bar (SHPB). An ultra high speed camera is used simultaneously to resolve the deformation and failure process in real-time. Experiments are conducted on micro-balloon filled aluminum with different density to understand the effect of the density on the stress–strain characteristics.
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Acknowledgements
The first author acknowledges the financial support through grant number SR/FST/ETII-003/2006 under the FIST program by Department of Science and Technology, Government of India for the Ultra-high speed camera used in this study.
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© 2014 The Society for Experimental Mechanics, Inc.
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Parameswaran, V., Sorensen, J., Bajpai, M. (2014). High Strain Rate Response of Layered Micro Balloon Filled Aluminum. In: Song, B., Casem, D., Kimberley, J. (eds) Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-00771-7_29
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DOI: https://doi.org/10.1007/978-3-319-00771-7_29
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