The main features of physical modeling of the delamination growth rate in layered composites in tensile loading are considered. To estimate this rate, an equation in the form of the well-known Collipriest equation, which is widely used in estimating the crack growth rate in metal materials, is proposed. The values of empirical constants of the equation for a quasi-isotropic [45/90/-45/0]S XAS/914 carbon/epoxy laminate in a tensile cyclic loading with R = 0.1 are obtained, and the S–N curve for it is constructed. A comparison of calculations with experimental data point to their acceptable accuracy.

中文翻译：

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一种估算拉伸循环载荷下层状复合材料分层增长率的方法

考虑了拉伸载荷下层状复合材料中分层增长速率的物理建模的主要特征。为了估计该速率，提出了一个以众所周知的 Colliprist 方程形式存在的方程，该方程广泛用于估计金属材料中的裂纹扩展速率。获得了在 R = 0.1 的拉伸循环载荷中准各向同性 [45/90/-45/0]S XAS/914 碳/环氧树脂层压板方程的经验常数值，以及 S-N 曲线它是建造的。计算与实验数据的比较表明其可接受的准确性。