Experimental Investigation on Impact Response of Aluminum Corrugated Sandwich Beams with Empty and PMI Foam Filling[J]. 2015, 49(1): 86-91.
DOI:
Experimental Investigation on Impact Response of Aluminum Corrugated Sandwich Beams with Empty and PMI Foam Filling[J]. 2015, 49(1): 86-91.DOI: 10.7652/xjtuxb201501014.
Experimental Investigation on Impact Response of Aluminum Corrugated Sandwich Beams with Empty and PMI Foam Filling
Two corrugated aluminum sandwich structures with empty and PMI foam filling are proposed to improve the strength and crashworthiness of oil tank structure under impact loading
and to provide substitutes for traditional monolithic counterpart. Aluminum foam projectile impact test is conducted to investigate the dynamic performance of the sandwich beams with the two proposed configurations. High-velocity photography is employed to capture the features of the beam deflecting process. The deflection history at the mid-span of the back face
as well as the deformation and failure modes
is studied for different sandwich beams with same total weight. Experimental results show that when impact velocities are relatively high
the corrugated core of empty sandwiches is significantly compressed and the front face experiences large scale indentation and severe tearing
whereas both core compression and front face tearing in foam-filled sandwiches are significantly reduced as a result of foam filling. The back face deflection of a foam-filled sandwich is nonetheless larger than that of an empty sandwich. From a realistic point of view
the filled sandwich is preferable compared to the empty sandwich.
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references
WADLEY H N G. Multifunctional periodic cellular metals [J]. Philosophical Transactions of the Royal Society: A, 2006, 364(1838): 31-68.
EVANS A G, HUTCHINSON J W, FLECK N A, et al. The topological design of multifunctional cellular metals [J]. Progress in Materials Science, 2001, 46(3/4): 309-327.
YAN Leilei, YU Bo, HAN Bin, et al. Compressive strength and energy absorption of sandwich panels with aluminum foam-filled corrugated cores [J]. Composites Science and Technology, 2013, 86: 142-148.
VAZIRI A, XUE Z, HUTCHINSON J W. Metal sandwich plates with polymer foam-filled cores [J]. Journal of Mechanics of Materials and Structures, 2006, 1(1): 97-127.
NI Changye, LI Yuchun, XIN Fengxian, et al. Ballistic resistance of hybrid-cored sandwich plates: numerical and experimental assessment [J]. Applied Science and Manufacturing: Part A, 2013, 46: 69-79.
TIAN Peipei, ZHAO Guiping, LU Tianjian. Numerical analysis for dynamic response of sandwich plates with lattice and filling under impact loading [J]. Chinese Journal of Applied Mechanics, 2009, 26(4): 788-792.
YU Jilin, WANG Erheng, LI Jianrong, et al. Static and low velocity impact behavior of sandwich beams with closed-cell aluminum-foam core in three-point bending [J]. International Journal of Impact Engineering, 2008, 35(8): 886-894.
HANSSEN A G, GIRARD Y, OLOVSSON L, et al. A numerical model for bird strike of aluminium foam-based sandwich panels [J]. International Journal of Impact Engineering, 2006, 32(7): 1127-1144.
RADFORD D D, DESHPANDE V S, FLECK N A. The use of metal foam projectiles to simulate shock loading on a structure [J]. International Journal of Impact Engineering, 2005, 31(9): 1152-1171.
RADFORD D D, FLECK N A, DESHPANDE V S. The response of clamped sandwich beams subjected to shock loading [J]. International Journal of Impact Engineering, 2006, 32(6): 968-987.
UTH T, DESHPANDE V S. Response of clamped sandwich beams subjected to high-velocity impact by sand slugs [J]. International Journal of Impact Engineering, 2014, 69: 165-181.
SONG Yanze, WANG Zhihua, ZHAO Longmao, et al. Investigation on dynamic response of sandwich plate to the impact of cellular metallic projectile [J]. Acta Armamentarii, 2011, 32(1): 1-7.