2024-06-17

最大抗剪刚度

D_{44}^{"} = m a x (D_{44, c a l c}^{"}, \frac{48}{5 l ²} \frac{1}{\frac{1}{\sum_{i = 1}^{n} E_{x, i}^{"} \frac{t_{i}^{3}}{12}} - \frac{1}{\sum_{i = 1}^{n} E_{x, i}^{"} \frac{z_{m a x, i}^{3} - z_{m i n, i}^{3}}{3}}})

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