Issue 48

F. V. Antunes et alii, Frattura ed Integrità Strutturale, 48 (2019) 676-692; DOI: 10.3221/IGF-ESIS.48.64 688 where F is the applied force, W is the width of the specimen, t is the thickness, a is the crack length,  is the angle of loading direction with respect to the crack plane. The degree of the mode-mixity is given by: I II K 2M .a.tan( ) π K  (A3)