Failure mode analysis of composite cylindrical shell structure under underwater explosion

Table 1. Water material parameters
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Table 1. Water material parameters
参数数值
密度$/({\rm{g} }\cdot {\rm{c}\rm{m} }^{-3})$ 1
$ C_{0}/(\rm{m}\rm{m}\cdot {\rm{s}}^{-1}) $ 1 480 000
$ S $ 0
$ {{\varGamma }}_{0} $ 0
$ \mu /(\rm{P}\rm{a}\cdot \rm{s}) $ 1.0×10−3

Table 2. Air material parameters

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Table 2. Air material parameters

参数	数值
密度$/(\mathrm{g}\cdot {\mathrm{c}\mathrm{m} }^{-3})$	$ 1.293\times {10}^{-3} $
气体常数	287 000 000
环境压力/MPa	0.101 3
$ \mu /(\mathrm{P}\mathrm{a}\cdot \mathrm{s}) $	$ 8.25\times {10}^{-5} $

Table 3. Constitutive model parameters of CFRP plate^[15]
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Table 3. Constitutive model parameters of CFRP plate^[15]
参数数值
密度$/(\mathrm{g}\cdot {\mathrm{c}\mathrm{m} }^{-3})$ 4
杨氏模量E1$ / $GPa 42.7
杨氏模量E2$ / $GPa 42.7
剪切模量$ / $GPa 4.4
泊松比${\nu }_{1}$ 0.05
泊松比${\nu }_{2}$ 0.05

Table 4. Parameter setting with different fiber layers of cylindrical shell
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Table 4. Parameter setting with different fiber layers of cylindrical shell
纤维层数长度L/mm 直径D/mm 厚度/mm 临界静水压力P_CO/MPa 冲击块速度v₀/(m·s⁻¹)
4 292 36.5 1.00 1.5 10
3 292 36.5 0.75 1.2 10
2 292 36.5 0.50 1.0 10

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Kun YANG, Wei ZHANG, Ying LI, Xianxian HE. Failure mode analysis of composite cylindrical shell structure under underwater explosion[J]. Chinese Journal of Ship Research, 2023, 18(2): 55

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