Issue 48

K. Kimakh et alii, Frattura ed Integrità Strutturale, 48 (2019) 429-441; DOI: 10.3221/IGF-ESIS.48.41

ap r ɛ

Depth of cut

Tool nose radius Width of the streak

l defect r ZPL

Radius of the crack propagation area

N f

Number of cycles to failure

R

Stress ratio

S max S min

Maximal stress Minimal stress Fatigue limit

σ w

Equivalent defect size

area

441