Abstract In this note a new procedure is proposed for accurate determination of ΔKth and Kmax,th thresholds. This procedure does not use any assumption besides an actual crack propagation, which occurs only when both thresholds are satisfied simultaneously. These thresholds are paramount for components in service where fatigue crack initiation could cause rapid growth to failure.

中文翻译：

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确定阈值的程序：ΔKth 和 Kmax,th

摘要 在这篇笔记中，提出了一种新的程序来准确确定 ΔKth 和 Kmax,th 阈值。除了实际裂纹扩展外，此过程不使用任何假设，只有当两个阈值同时满足时才会发生。这些阈值对于疲劳裂纹萌生可能导致快速失效的使用中的组件至关重要。