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This content will become publicly available on January 6, 2019

Title: Metal plasticity and ductile fracture modeling for cast aluminum alloy parts

Here in this study, plasticity and ductile fracture properties were characterized by performing various tension, shear, and compression tests. A series of 10 experiments were performed using notched round bars, flat-grooved plates, in-plane shear plates, and cylindrical bars. Two cast aluminum alloys used in automotive suspension systems were selected. Plasticity modelling was performed and the results were compared with experimental and corresponding simulation results; further, the relationships among the stress triaxiality, Lode angle parameter, and equivalent plastic strain at the onset of failure were determined to calibrate a ductile fracture model. Finally, the proposed ductile fracture model shows good agreement with experimental results.
 [1] ;  [1] ;  [1] ;  [2] ;  [1]
  1. Korea Inst. of Materials Science, Changwon (Republic of Korea). Materials Deformation Dept.
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Grant/Contract Number:
PNK5032; 10063579; AC05-76RL01830
Accepted Manuscript
Journal Name:
Journal of Materials Processing Technology
Additional Journal Information:
Journal Volume: 255; Journal ID: ISSN 0924-0136
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE; Hyundai-Kia Motor Company (HKMC)
Country of Publication:
United States
36 MATERIALS SCIENCE; Ductile fracture; Finite element; Constitutive modeling; Cast aluminum alloy
OSTI Identifier: