Delamination process in cross-ply UHMWPE laminates under ballistic penetration

• 作者: Gen-lin Mo Qian-wen Ma Wen-min Yan Yong-xi Jin Zhi-lin Wu Zhong-xin Li
• 来源期刊: 防务技术
• 年，卷（期）: 2021,（1）
• 页码范围: 278-286
• 页数: 9页
• 语种: 英文

摘要

Cross-ply unidirectional laminates made of ultra-high molecular weight polyethylene fibers are widely used as components of bullet-proof vests. To simulate the delamination process of the material under penetration, we constructed a numerical mechanical model, which was validated by tests using 7.62 × 39 mm rifle bullets penetrating laminates of different thicknesses. The results show that the delamination region is essentially diamond-shaped. The simulated delamination region is in good agreement with the experimental data. It is found that the delamination region increases with the compression modulus along the fiber direction. The delamination region increases when the shear strength between the fabric layers decreases;However, it is little influenced by the normal strength. The delamination region of the front face of the laminate is little influenced by the failure strain of the material and the initial velocity of the bullet. The delamination region of the back face increases with the failure strain and decreases with the initial velocity.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Zhong-xin Li		2	0	0.0	0.0
2	Zhi-lin Wu		2	0	0.0	0.0
3	Gen-lin Mo		1	0	0.0	0.0
4	Qian-wen Ma		1	0	0.0	0.0
5	Yong-xi Jin		1	0	0.0	0.0
6	Wen-min Yan		1	0	0.0	0.0