Modeling of ductile fracture from shear to balanced biaxial tension for sheet metals

• Published in: International journal of solids and structures Vol. 112; pp. 169 - 184
• Main Authors: Lou, Yanshan, Chen, Lin, Clausmeyer, Till, Tekkaya, A. Erman, Yoon, Jeong Whan
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 01.05.2017; Elsevier BV
• Subjects: Axial stress; BCC metals; Bulk metal forming; Calibration; Coalescing; Criteria; Design optimization; Design parameters; Ductile fracture; Ductility; Enlargement; Experiments; Forming; Fractures; Lode dependence; Mathematical models; Metal forming; Metal sheets; Optimization; Plane strain; Predictions; Process parameters; Shear; Shear fracture; Sheet metal forming; Strain; Strain hardening; Stress state; Stress Triaxiality; Strokes; Shear fracture; Bulk metal forming; Stress Triaxiality; Ductile fracture; Lode dependence; Sheet metal forming

•A model is proposed to describe shear ductile fracture from shear to the balanced biaxial tension.•The stress invariant-based Drucker yield function is specified for BCC and FCC metals to the balanced biaxial tension.•The model is successfully employed to predict ductile fracture of AA6082 in wide...