Issue 50

A. Sarkar et alii, Frattura ed Integrità Strutturale, 50 (2019) 86-97; DOI: 10.3221/IGF-ESIS.50.09 97 da/dN Crack growth rate δ c Ratchet/creep strain accumulated per cycle D Material ductility a f Final crack length a 0 Initial crack length a i Crack length at i th cycle r c Reduction-ratio of crack length a i,eq Equivalent crack length a cr.,eq Equivalent critical crack length A, n Material constants in crack growth equation