Abstract
Due to the unique structural mode and material property of a composite sandwich plate, related research such as fragment impact resistance of a composite mast is short of publication and urgent in this field. In this paper, the commonly accepted sandwich core board theory was modified. Damage caused by a fragment attack was simulated onto a sandwich plate model built with solid and shell elements. It was shown that shear failure and vast matrix cracking are the main reasons for outer coat damage, and tension failure and partial matrix cracking are the cause for inner coat damage. Additionally, according to complexities in actual sea battles, different work conditions of missile attacks were set. Ballistic limit values of different fragment sizes were also obtained, which provides references for enhancing the fragment impact resistance of a composite mast.
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Foundation item: Supported by the Research-in-advance Foundation of Naval Armory under Grant No.401030101, the National Defense Science and Technology Cooperation Foundation (2007DFR80340), Research-in-advance Foundation of National Defense Science and Technology in Shipbuilding Industry (07J1.1.6).
Chao Wu was born in 1986. He is a master candidate at Harbin Engineering University, majoring in design and construction of naval architecture and ocean structure.
Wenshan Yang was born in 1985. He is a PhD candidate at Harbin Engineering University. His current research interest is ship structural dynamics.
Shaofei Ren was born in 1986. He is a master candidate at Harbin Engineering University, majoring in design and construction of naval architecture and ocean structure.
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Zhang, W., Wu, C., Yang, W. et al. Research on the fragment impact resistance of a composite mast. J. Marine. Sci. Appl. 10, 300–305 (2011). https://doi.org/10.1007/s11804-011-1072-3
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DOI: https://doi.org/10.1007/s11804-011-1072-3