The mechanisms by which different morphologies of preferentially foam filled corrugated panels deform under planar blast loading, transmit shock, and absorb energy are investigated experimentally and numerically for the purpose of mitigating back-face deflection (BFD). Six foam filling configurations were fabricated and subjected to shock wave loading generated by a shock tube. Shock tube experimental results obtained from high-speed photography were used to validate the numerical models. The validated numerical model was further used to analyze 24 different core configurations. The experimental and numerical results show that soft/hard arrangements (front to back) are the most effective for blast resistivity as determined by the smallest BFDs. The number of foam filled layers in each specimen affected the amount of front-face deflections (FFDs), but did relatively little to alter BFDs, and results do not support alternating foam filling layers as a valid method to attenuate shock impact.
Preferentially Filled Foam Core Corrugated Steel Sandwich Structures for Improved Blast Performance
Contributed by the Applied Mechanics Division of ASME for publication in the JOURNAL OF APPLIED MECHANICS. Manuscript received February 17, 2015; final manuscript received March 28, 2015; published online April 30, 2015. Editor: Yonggang Huang.
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Yazici, M., Wright, J., Bertin, D., and Shukla, A. (June 1, 2015). "Preferentially Filled Foam Core Corrugated Steel Sandwich Structures for Improved Blast Performance." ASME. J. Appl. Mech. June 2015; 82(6): 061005. https://doi.org/10.1115/1.4030292
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