应力条件

损伤模式

损伤起始判据

${\sigma }_{11}>0$

轴向纤维拉伸损伤 $F_f^t\left(\sigma \right)$

${\left(\frac{{\sigma }_{11}}{X_1^{\text{t}}}\right)}^2\text{+}{\left(\frac{{\sigma }_{12}}{S_{12}}\right)}^2\text{+}{\left(\frac{{\sigma }_{13}}{S_{13}}\right)}^2\ge 1$

${\sigma }_{11}<0$

轴向纤维压缩损伤 $F_f^c\left(\sigma \right)$

$\frac{\left|{\sigma }_{11}\right|}{X_1^c}\ge 1$

${\sigma }_{22}+{\sigma }_{33}>0$

横向树脂拉伸损伤 $F_m^t\left(\sigma \right)$

$\left[{\left(\frac{{\sigma }_{11}}{2X_1^t}\right)}^2+\frac{{\sigma }_{22}^2}{\left|X_2^t{X}_1^c\right|}+{\left(\frac{{\sigma }_{12}}{S_{12}}\right)}^2\right]+{\sigma }_{22}\left(\frac{1}{X_2^t}+\frac{1}{X_2^C}\right)\ge 1$

${\sigma }_{22}+{\sigma }_{33}<0$

横向树脂压缩损伤 $F_m^c\left(\sigma \right)$

$\left[{\left(\frac{{\sigma }_{11}}{2X_1^t}\right)}^2+\frac{{\sigma }_{22}^2}{\left|X_2^t{X}_1^c\right|}+{\left(\frac{{\sigma }_{12}}{S_{12}}\right)}^2\right]+{\sigma }_{22}\left(\frac{1}{X_2^t}+\frac{1}{X_2^C}\right)\ge 1$