YANG Nana, ZHAO Tianyou, CHEN Zhipeng, WU Guoxun, YAO Xiongliang. Peridynamic simulation of damage of ship composite structure under fragments impact[J]. Explosion And Shock Waves, 2020, 40(2): 023302. doi: 10.11883/bzycj-2019-0019
Citation:
YANG Nana, ZHAO Tianyou, CHEN Zhipeng, WU Guoxun, YAO Xiongliang. Peridynamic simulation of damage of ship composite structure under fragments impact[J]. Explosion And Shock Waves, 2020, 40(2): 023302. doi: 10.11883/bzycj-2019-0019
YANG Nana, ZHAO Tianyou, CHEN Zhipeng, WU Guoxun, YAO Xiongliang. Peridynamic simulation of damage of ship composite structure under fragments impact[J]. Explosion And Shock Waves, 2020, 40(2): 023302. doi: 10.11883/bzycj-2019-0019
Citation:
YANG Nana, ZHAO Tianyou, CHEN Zhipeng, WU Guoxun, YAO Xiongliang. Peridynamic simulation of damage of ship composite structure under fragments impact[J]. Explosion And Shock Waves, 2020, 40(2): 023302. doi: 10.11883/bzycj-2019-0019
Based on the method of near-field dynamics, the effects of fragment velocity, ply mode of laminated plate, rib size of stiffened plate and impact position of fragment relative to rib on the damage mode and residual velocity of fragment are analyzed. The results show that: under the impact of high-speed fragments, the laminate will be penetrated and penetrated. The damage mode of the laminate is mainly matrix damage. With the increase of the impact speed of fragments, the damage area of the upper and lower surfaces of the laminate presents a trend of increasing first and then decreasing. Under the impact of high-speed fragments, the damage expansion direction of the laminate is related to the direction of fiber laying. For the laminates with the same fiber ply direction, the damage propagation direction of the upper and lower surfaces is generally the same as that of the fiber; the stiffened plate can obtain better fragment impact resistance than the laminated plate by increasing a small amount of mass, and the size of the stiffened plate and the impact position of the fragments relative to the stiffeners have a significant impact on the damage of the stiffened plate.
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