标准摘要
[中文适用范围]： 本文件描述了从疲劳裂纹扩展阈值应力强度因子范围 ΔKth 到快速不稳定断裂开始时确定疲劳裂纹扩展速率的测试。 本文件主要用于评估主要是线弹性应力条件下的各向同性金属材料，仅垂直于裂纹平面施加力（I 型应力条件），并且力比 R 恒定。 [外文原描述]： This document describes tests for determining the fatigue crack growth rate from the fatigue crack growth threshold stress-intensity factor range, Δ K th , to the onset of rapid, unstable fracture. This document is primarily intended for use in evaluating isotropic metallic materials under predominantly linear-elastic stress conditions and with force applied only perpendicular to the crack plane (mode I stress condition), and with a constant force ratio, R .
英文名称Metallic materials — Fatigue testing — Fatigue crack growth method