Ballistic performance of ultra-high molecular weight polyethylene laminates against fragment-simulating projectiles

参数	数值
密度${\rho }_{\rm{s}}$/(g·cm−3)	7.88
剪切模量G/GPa	77.8
静态屈服强度A/MPa	1 030
应变硬化系数B/MPa	477
应变硬化指数n	0.18
应变率硬化系数C	0.012
热软化指数m	1
材料熔化温度Tm/K	1 763
参考应变率${\dot{\varepsilon }}_{0}/$s−1	1

Table 2. Material parameters of a UHMWPE laminate plate^[17]

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Table 2. Material parameters of a UHMWPE laminate plate^[17]

参数	数值	参数	数值
ρ/(g·cm⁻³)	0.98	Г	1.64
E₁₁/GPa	3.62	A₁₁	0.016
E₂₂/GPa	51.1	A₂₂	6×10⁻⁴
E₃₃/GPa	51.1	A₃₃	6×10⁻⁴
ν₁₂	0.013	S₁₁/GPa	1×10²⁰
ν₂₃	0	S₂₂/GPa	1.15
υ₃₁	0.5	S₃₃/GPa	1.15
G₁₂/GPa	2	G_11,f/(J·m⁻²)	790
G₂₃/GPa	0.192	G_22,f/(J·m⁻²)	30
G₃₁/GPa	2	G_33,f/(J·m⁻²)	30

Table 3. Comparison of ballistic limit velocity results for the UHMWPE laminate plate with different thicknesses
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Table 3. Comparison of ballistic limit velocity results for the UHMWPE laminate plate with different thicknesses
靶板厚度/mm FSP直径/mm 试验弹道极限速度^[19]/(m·s⁻¹) 仿真弹道极限速度/(m·s⁻¹) 相对误差/%
10 20 394 439 11.42
36 20 901 1 098 21.86
102 20 2 002 2 400 19.88

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Wenxi DAI, Wei XIE, Pengcheng HU, Yuansheng CHENG, Xiaoshun YAN, Pan ZHANG. Ballistic performance of ultra-high molecular weight polyethylene laminates against fragment-simulating projectiles[J]. Chinese Journal of Ship Research, 2023, 18(2): 20

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