Abstract
During blast loading, the core of a sandwich composite demonstrates complicated stress/strain behavior. The shear stress/strain in the core is the primary consideration. Though the shear strain profile is non-linear, the transverse strain in the core is generally modeled with a linear or constant profile in numerical simulation. However, recent numerical studies have found that the transverse strain in the core also has a highly non-linear profile through the thickness. This is important in understanding the mechanism of pulse mitigation in sandwich composites. To date, no experimental investigations have been done to visualize the strain profile in the core of sandwich composites subjected to blast loading. In this paper, the high-speed 3-D Digital Image Correlation (DIC) technique was utilized to characterize such strain profiles. The real-time deformation images of the core material in a sandwich panel were captured by a high-speed photography system. The strain profiles and histories were calculated from these real-time images using DIC technique. These results were carefully analyzed and discussed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Vinson JR. The Behavior of Sandwich Structures of Isotropic and Composite Materials, Lancester, Technomic Publishing Company, 1999.
Li R, Kardomateas GA and Simitses GJ. Point-wise impulse (blast) response of a composite sandwich plate including core compressibility effects. International Journal of Solids and Structures, 46, 2216–2223, 2009.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2011 Springer Science+Business Media, LLC
About this paper
Cite this paper
Wang, E., Shukla, A. (2011). Core Deformation of Sandwich Composites under Blast Loading. In: Proulx, T. (eds) Experimental and Applied Mechanics, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-9792-0_32
Download citation
DOI: https://doi.org/10.1007/978-1-4419-9792-0_32
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-9497-4
Online ISBN: 978-1-4419-9792-0
eBook Packages: EngineeringEngineering (R0)