Aerospace series - Test methods for metallic materials - Determination of fatigue crack growth rates using Corner- Cracked (CC) test pieces

This document establishes a standardized procedure within the aerospace field for evaluating the fatigue crack growth behavior of metallic materials. It specifically outlines the methodology for utilizing an angle crack specimen to determine the rate at which cracks propagate under cyclic loading conditions. The technical specifications provided in this text cover the necessary preparation of test samples, the configuration of loading fixtures, and the precise measurement techniques required to capture crack extension data accurately. By adhering to these guidelines, laboratories and manufacturers can ensure consistent and reliable assessment of material durability in aerospace applications. The approach focuses on minimizing variability in experimental setups to produce reproducible results that reflect the inherent properties of the metal being tested. This protocol serves as a critical reference for quality control and engineering analysis, supporting the development of safer and more efficient aerospace components without addressing the broader implications or historical context of its adoption.