BS ISO 12108:2018 - Page 2

Metallic materials. Fatigue testing. Fatigue crack growth method. | Status: Current, Project Underway

1 Scope This document describes tests for determining the fatigue crack growth rate from the fatigue crack growth threshold stress-intensity factor range, ΔKth, 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.