2021 Fiscal Year Annual Research Report
Modeling of ductile failure in multi-phase metallic materials
| Project/Area Number |
20K14604
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| Research Institution | The University of Tokyo |
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Principal Investigator |
ブリフォ ファビャン 東京大学, 大学院工学系研究科(工学部), 特任助教 (70836890)
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | Crystal plasticity / X-CT / Finite element method / Ductile failure |
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| Outline of Annual Research Achievements |
The objective of this research was to establish and implement an experimentally-validated ductile damage model (initiation + evolution) within a finite element framework, for the prediction of ductile failure in multi-phase alloy. The model, implemented in the first year, was partially calibrated to obtain the damage initiation fracture locus. In this year, the specific progresses were achieved:
(1) The evolution of void growth and coalescence was experimentally tracked by SEM and X-CT measurements.
(2) The damage evolution model (post-initiation) was calibrated based on void growth measurement.
(3) Finally, the developed model was validated against additional materials not used in the fitting procedure.
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