Analysis of damage behavior of new-type marine composite thick plate with reinforcing ribs and core material in middle

参数	数值	参数	数值
$ {E_{11}}{\text{/MPa}} $	165 000	$ {X_{\rm{T}}}{\text{/MPa}} $	2 714
$ {E_{22}}{\text{/MPa}} $	9 560	$ {X_{\rm{C}}}/{\text{MPa}} $	1 305
$ {E_{33}}{\text{/MPa}} $	9 560	$ {Y_{\rm{T}}}{\text{/MPa}} $	37.5
$ {G_{12}}{\text{/MPa}} $	5 400	$ {Y_{\rm{C}}}{\text{/MPa}} $	188
$ {G_{23}}{\text{/MPa}} $	5 400	$ {Z_{\rm{T}}}{\text{/MPa}} $	40
$ {G_{31}}{\text{/MPa}} $	4 800	$ {Z_{\rm{C}}}{\text{/MPa}} $	140

Table 2. Performance parameters of adhesive

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Table 2. Performance parameters of adhesive

材料参数	普通胶	高强胶
$ E{\text{/MPa}} $	3.4	3.4
$ G{\text{/MPa}} $	3.4	3.4
$ \sigma /{\text{MPa}} $	31.5	63
$\tau /{\text{MPa}}$	36.5	73
${\text{G}}_{\rm{n}}^{\rm{C}}/({\rm{N}} \cdot{{\rm{mm}}^{ - 1}})$	0.9	5.4
$ ({\text{G}}_{\rm{s}}^{\rm{C}}，{\text{G}}_{\rm{t}}^{\rm{C}})/({\rm{N}}\cdot {\rm{mm}}^{-1}) $	1.0	6.0

Table 3. 2D Hashin criterion

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Table 3. 2D Hashin criterion

破坏模式	失效准则
纤维拉伸（$ \widehat {{\sigma _{11}}} \geqslant 0 $）	$ F_{\rm{f}}^{\rm{t}} = {\left( {\dfrac{{\widehat {{\sigma _{11}}}}}{{{X_{\rm{T}}}}}} \right)^2} + {\left( {\dfrac{{\widehat {{\tau _{12}}}}}{{{S_{\rm{L}}}}}} \right)^2} $
纤维压缩（$ \widehat {{\sigma _{11}}} < 0 $）	$ F_{\rm{f}}^{\text{c}} = {\left( {\dfrac{{\widehat {{\sigma _{11}}}}}{{{X_{\rm{C}}}}}} \right)^2} $
基体拉伸（$ \widehat {{\sigma _{22}}} \geqslant 0 $）	$ F_{\rm{m}}^{\rm{t}} = {\left( {\dfrac{{\widehat {{\sigma _{22}}}}}{{{Y_{\rm{T}}}}}} \right)^2} + {\left( {\dfrac{{\widehat {{\tau _{12}}}}}{{{S_{\rm{L}}}}}} \right)^2} $
基体压缩（$ \widehat {{\sigma _{22}}} < 0 $）	$ F_{\rm{m}}^{\rm{c}} = {\left( {\dfrac{{\widehat {{\sigma _{22}}}}}{{2{S_{\rm{T}}}}}} \right)^2} + \left[ {\left( {\dfrac{{{Y_{\rm{C}}}}}{{2{S_{\rm{T}}}}}} \right) - 1} \right]\dfrac{{\widehat {{\sigma _{22}}}}}{{{Y_{\rm{C}}}}} + {\left( {\dfrac{{\widehat {{\tau _{12}}}}}{{{S_{\rm{L}}}}}} \right)^2} $

Table 4. Comparison of \begin{document}${\sigma _{33}}$\end{document}，\begin{document}${\tau _{13}}$\end{document}，\begin{document}${\tau _{23}}$\end{document} peak stress of adhesive layer at points A，B，C，D
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Table 4. Comparison of \begin{document}${\sigma _{33}}$\end{document}，\begin{document}${\tau _{13}}$\end{document}，\begin{document}${\tau _{23}}$\end{document} peak stress of adhesive layer at points A，B，C，D
参考点载荷峰值/MPa
$ {\sigma _{33}} $ ${\tau _{13}}$ ${\tau _{23}}$
A −8.27 9.83 35.06
B −2.64 1.00 35.00
C −7.92 34.81 4.08
D −5.77 33.17 9.14

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Hao TONG, Yuchao YUAN, Wenyong TANG. Analysis of damage behavior of new-type marine composite thick plate with reinforcing ribs and core material in middle[J]. Chinese Journal of Ship Research, 2024, 19(5): 131

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