A stress-based shear fracture criterion considering the effect of stress triaxiality and Lode parameter

• Published in: International journal of solids and structures Vol. 256; p. 111993
• Main Authors: Lou, Yanshan, Wu, Pengfei, Zhang, Chong, Wang, Jizhen, Li, Xvyang, Chai, Rugang, Yoon, Jeong Whan
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.12.2022
• Subjects: Ductile fracture; Forming limit stress curve; Inverse engineering; Lode parameter; Metal forming; Stress triaxiality; Inverse engineering; Metal forming; Ductile fracture; Forming limit stress curve; Lode parameter; Stress triaxiality

•A stress-based shear ductile fracture criterion is proposed to improve the prediction accuracy of failure for lightweight metals.•The mechanical behavior of AA5182-O sheet is uncovered from tension to equibiaxial tension.•The direct and inverse engineering methods are adopted to calibrate the fract...