Used frequently for sheet metals or thin plate stock. Surface Integrity Protocols
ASTM E466-21 refers to for general specimen dimensions but provides specific guidance for fatigue specimens. astm e466-21
: Limited to axial notched and unnotched specimens; it does not cover full-scale structures or consumer products. Testing Requirements and Best Practices Used frequently for sheet metals or thin plate stock
From this data, designers would use a safety factor of ~2–3 to select allowable stresses for a 10⁸-cycle life component. astm e466-21