A direct analytical methodology for the assessment of ductile fracture in metals based on multiaxial tests

• Published in: Fatigue & fracture of engineering materials & structures Vol. 47; no. 9; pp. 3408 - 3424
• Main Authors: Cortis, Gabriele, Piacenti, Marcello, Nalli, Filippo, Cortese, Luca
• Format: Journal Article
• Language: English
• Published: Oxford Wiley Subscription Services, Inc 01.09.2024
• Subjects: Calibration; Complexity; Critical point; Damage assessment; damage models calibration; Ductile fracture; material characterization; Mathematical models; multiaxial tests; Plastic deformation; Strain analysis; Stress-strain relationships

The prediction accuracy of ductile damage models is subject to a sound calibration strategy, which normally involves the execution of complex multiaxial tests and requires dedicated facilities. In addition, finite element (FE) analysis is mandatory to retrieve the stress and strain states at the cri...