Blast Resistance of Clamped Cylindrical Sandwich Shells with Metallic Foam Cores

Abstract:

The deformation/failure modes and dynamic response of fully clamped cylindrical sandwich shells with aluminum foam cores subjected to air blast loading were investigated experimentally. A four-cable ballistic pendulum system was employed to measure the impulse imparted to the blast-loaded specimen. The deformation/failure modes of specimens were classified and analyzed, the effects of face-sheet thickness, core relative density, specimen curvature and mass of charge on the structural response of metallic sandwich shells were examined. Experimental results indicate that both the deformation/failure modes and the dynamic response of the sandwich shells are sensitive to the structural configurations and blast impulse. The experimental results are useful for validating theoretical predictions, as well as in engineering applications of cellular metal sandwich structures.

• Periodical: Key Engineering Materials (Volumes 535-536)
• Pages: 461-464
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.535-536.461
• Online since: January 2013
• Authors: Lin Jing, Zhi Hua Wang, Long Mao Zhao, V.P.W. Shim
• Keywords: Blast Loading, Deformation Mode, Dynamic Response, Failure Mode, Sandwich Shell

References

[1] D. D. Radford, G. J. McShane, V. S. Deshpande, N. A. Fleck, The response of clamped sandwich plates with metallic foam cores to simulated blast loading, Int. J. Solids Struct.. 43 (2006) 2243-2259.

DOI: 10.1016/j.ijsolstr.2005.07.006

[2] F. Zhu, L. M. Zhao, G. X. Lu, Z. H. Wang, Deformation and failure of blast-loaded metallic sandwich panels-Experimental investigations, Int. J. Impact Engng.. 35 (2008) 937-951.

DOI: 10.1016/j.ijimpeng.2007.11.003

[3] X. Qiu, V. S. Deshpande, N. A. Fleck, Impulsive loading of clamped monolithic and sandwich beam over a central patch, J. Mech. Phys. Solids. 53 (2005) 1015-1061.

DOI: 10.1016/j.jmps.2004.12.004

[4] L. Jing, Z. H. Wang, J. G. Ning, L. M. Zhao, The dynamic response of sandwich beams with open-cell metal foam cores, Composites: Part B. 42 (2011) 1-10.

DOI: 10.1016/j.compositesb.2010.09.024

[5] J. H. Shen, G. X. Lu, Z. H. Wang, L. M. Zhao, Experiments on curved sandwich panels under blast loading, Int. J. Impact Engng.. 37 (2010) 960-970.

DOI: 10.1016/j.ijimpeng.2010.03.002

[6] X. R. Liu, X. G. Tian, T. J. Lu, D. Q. Zhou, B. Liang, Blast resistance of sandwich-walled hollow cylinders with graded metallic foam cores, Composite Structures. 94 (2012) 2485-2493.

DOI: 10.1016/j.compstruct.2012.02.029

[7] M. S. H. Fatt, H. Surabhi, Blast Resistance and Energy Absorption of Foam-Core Cylindrical Sandwich Shells under External Blast, Composite Structures. 2012

DOI: 10.1016/j.compstruct.2012.05.013