Journal
COMPOSITE STRUCTURES
Volume 94, Issue 8, Pages 2485-2493Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2012.02.029
Keywords
Blast resistance; Aluminum foam; Sandwich; Hollow cylinder; Finite element
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Funding
- National Basic Research Program of China [2011CB610305]
- National Natural Science Foundation of China [11072188, 11021202, 50975221]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20110201110062]
- Science & Technology Projects of Shaanxi [2010K10-10]
- Technology Support Program of Xi'an [CXY1020]
- Fundamental Research Funds for the Central Universities
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The dynamic responses and blast resistance of all-metallic sandwich-walled hollow cylinders with graded aluminum foam cores are investigated using finite element simulations, and compared with those of conventional ungraded ones. After validating the numerical approach and introducing the computational model, sandwich-walled hollow cylinders with various graded aluminum foam cores are analyzed under air blast loading. It is demonstrated that the radial deflection of graded cylinders is smaller than and the blast resistance superior to that of ungraded ones when subjected to identical air blast loading. This can be further improved by optimizing the foam core arrangement. Finally, the influence of face-sheet arrangements on the dynamic behavior of graded cylinders is explored. (c) 2012 Elsevier Ltd. All rights reserved.
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