Ductile fracture of aluminum 2024-T351 under proportional and non-proportional multi-axial loading: Bao–Wierzbicki results revisited
作者： Jessica Papasidero , Véronique Doquet , Dirk Mohr
DOI: 10.1016/J.IJSOLSTR.2015.05.006
关键词: Plane stress 、 Pure shear 、 Strain energy release rate 、 Composite material 、 Ductility 、 Structural engineering 、 Plasticity 、 Materials science 、 Stress–strain curve 、 Stress intensity factor 、 Fracture toughness
摘要: The effect of stress state and loading path on the ductile fracture of aluminum 2024-T351 is characterized through tension–torsion experiments on tubular specimens. The experimental program includes proportional and non-proportional loading paths leading to the onset of fracture at nearly plane stress conditions at stress triaxialities between 0 and 0.6. Stereo digital image correlation is used to measure the displacements and rotations applied to the specimen shoulders. An isotropic non-quadratic Hosford plasticity model with combined …
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