Research on the fragment impact resistance of a composite mast |
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Authors: | Wei Zhang Chao Wu Wenshan Yang Shanshan Xu Shaofei Ren |
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Institution: | (1) University of Alabama at Birmingham, Alabama, USA |
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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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Keywords: | |
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