Issue 48

K. Kimakh et alii, Frattura ed Integrità Strutturale, 48 (2019) 429-441; DOI: 10.3221/IGF-ESIS.48.41 441 ap Depth of cut r ɛ Tool nose radius l defect Width of the streak r ZPL Radius of the crack propagation area N f Number of cycles to failure R Stress ratio S max Maximal stress S min Minimal stress σ w Fatigue limit area Equivalent defect size