Abstract Multiple attempts have been devoted to interpret and predict the time to failure variability experienced on SiC bundles by slow-crack-growth. External discrete phenomena such as fiber sticking or load sharing are usually pointed. These approaches were reviewed and compared to extensive datasets on 6 fiber types, showing their insufficiency to cover the full scattering range. An original theory was hence evaluated: in addition to filament strength distribution, ruled by weakest link theory and therefore narrowly scattered, a bias on tow section and thus on applied stress, was introduced. Consistent results were obtained through a Monte-Carlo algorithm integrating these stochastic parameters.

中文翻译：

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中温下 SiC 基复丝丝束的静态疲劳：失效时间可变性

摘要 已多次尝试解释和预测 SiC 束因裂纹缓慢增长而经历的失效时间变化。通常指出外部离散现象，例如光纤粘连或负载共享。这些方法经过审查并与 6 种光纤类型的广泛数据集进行比较，表明它们不足以覆盖整个散射范围。因此评估了一个原始理论：除了由最弱连接理论规定并因此分散得很窄的长丝强度分布之外，还引入了对丝束截面的偏差，从而对施加的应力施加了偏差。通过集成这些随机参数的蒙特卡罗算法获得一致的结果。