Ma Xiaomin, Li Shiqiang, Li Xin, Wang Zhihua, Wu Guiying. Dynamic response of woven Kevlar/Epoxy composite laminatesunder impact loading[J]. Explosion And Shock Waves, 2016, 36(2): 170-176. doi: 10.11883/1001-1455(2016)02-0170-07
Citation:
Ma Xiaomin, Li Shiqiang, Li Xin, Wang Zhihua, Wu Guiying. Dynamic response of woven Kevlar/Epoxy composite laminatesunder impact loading[J]. Explosion And Shock Waves, 2016, 36(2): 170-176. doi: 10.11883/1001-1455(2016)02-0170-07
Ma Xiaomin, Li Shiqiang, Li Xin, Wang Zhihua, Wu Guiying. Dynamic response of woven Kevlar/Epoxy composite laminatesunder impact loading[J]. Explosion And Shock Waves, 2016, 36(2): 170-176. doi: 10.11883/1001-1455(2016)02-0170-07
Citation:
Ma Xiaomin, Li Shiqiang, Li Xin, Wang Zhihua, Wu Guiying. Dynamic response of woven Kevlar/Epoxy composite laminatesunder impact loading[J]. Explosion And Shock Waves, 2016, 36(2): 170-176. doi: 10.11883/1001-1455(2016)02-0170-07
Based on the blunt projectile impact test of woven Kevlar/Epoxy composite laminates, the deformation and failure modes of the composite laminates subjected to impact load were analyzed. Experimental results show that the deformation and failure behaviors were exhibited in the following ways: the global elastic deformation, the global plastic deformation with local embedded failure on the front surface, and the delaminated failure with fibers tension fracture on the back surface. The finite element software LS-DYNA 971 was employed to analyze the dynamic response of the woven Kevlar/Epoxy composite laminates subject to impact loading. Numerical simulation results show that there is a good agreement of the deformation/failure modes and the back face center-point deflection of the specimens, with those of the experimental results. The failure area on the front face is a circle embedded region, but a square failure region on the back face. The numerical simulation is focused on studying the effects of the number of layers on the dynamic response of the structure. Optimizing the number of the layers can effectively reduce the permanent deflection, increase the energy absorption efficiency and improve the impact resistance performance of the structure within a given range of impulses.
Cunniff P M. An analysis of the system effects in woven fabrics under ballistic impact[J]. Textile Research Journal, 1992, 62(9):495-509. doi: 10.1177/004051759206200902
[3]
Cunniff P M. A semi-empirical model for the ballistic performance of textile-based personnel armor[J]. Textile Research Journal, 1996, 66(1):45-58. doi: 10.1177/004051759606600107
Gu Bingfang, Gong Liehang, Xu Guoyue. Bullet proof mechanism and performance of Kevlar multi-layers textile[J]. Journal of Nanjing University of Science and Technology: Natural Science Edition, 2007, 31(5):638-642. http://d.old.wanfangdata.com.cn/Periodical/njlgdxxb200705021
[5]
Barauskas R, Abraitiene A. Computational analysis of impact of a bullet against the multilayer fabrics in LY-DYNA[J]. International Journal of Impact Engineer, 2007, 34(7):1286-1305. doi: 10.1016/j.ijimpeng.2006.06.002
[6]
Kostopoulos V, Markopouls Y P, Giannopoulos G, et al. Finite element analysis of impact damage response of composite motorcycle safety helmets[J]. Composites Part B: Engineering, 2002, 33(2):99-107. doi: 10.1016/S1359-8368(01)00066-X
DownLoad:
