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Grain-orientation induced stress formation in AA2024 monocrystal and bicrystal using Crystal Plasticity Finite Element Method

Qi Zhao (UGent) , Magd Abdel Wahab (UGent) , Yong Ling (UGent) and Zhiyi Liu
(2021) MATERIALS & DESIGN. 206.
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Abstract
Stress formation of monocrystals and bicrystals is investigated in specific oriented grains and grain boundaries of AA2024 alloy by using Crystal Plasticity Finite Element Method (CPFEM). The simulations show that the maximum Schmid factor (SF) value and the number of equivalent initial slip system (EISS) play a principal role in controlling the magnitude of internal stress within monocrystals. For bicrystal model, Goss and Cube grains are not the best ones for relieving stress concentration caused by their orientations, but they are the best ones for relieving grain boundary (GB) stress concentration. To this end, the dependence relations are discussed between GB stress and an advanced comprehensive factor combining SF, and geometry compatibility factor for 5 independent slip systems. It is found that this proposed comprehensive factor considering the contribution from 5 to independent slip systems effectively improves its dependence on GB stress. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords
Mechanical Engineering, General Materials Science, Mechanics of Materials, AA2024 alloy, Goss orientation, Grain boundary, Crystal plasticity, Finite element method, Dislocation interaction

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MLA
Zhao, Qi, et al. “Grain-Orientation Induced Stress Formation in AA2024 Monocrystal and Bicrystal Using Crystal Plasticity Finite Element Method.” MATERIALS & DESIGN, vol. 206, 2021, doi:10.1016/j.matdes.2021.109794.
APA
Zhao, Q., Abdel Wahab, M., Ling, Y., & Liu, Z. (2021). Grain-orientation induced stress formation in AA2024 monocrystal and bicrystal using Crystal Plasticity Finite Element Method. MATERIALS & DESIGN, 206. https://doi.org/10.1016/j.matdes.2021.109794
Chicago author-date
Zhao, Qi, Magd Abdel Wahab, Yong Ling, and Zhiyi Liu. 2021. “Grain-Orientation Induced Stress Formation in AA2024 Monocrystal and Bicrystal Using Crystal Plasticity Finite Element Method.” MATERIALS & DESIGN 206. https://doi.org/10.1016/j.matdes.2021.109794.
Chicago author-date (all authors)
Zhao, Qi, Magd Abdel Wahab, Yong Ling, and Zhiyi Liu. 2021. “Grain-Orientation Induced Stress Formation in AA2024 Monocrystal and Bicrystal Using Crystal Plasticity Finite Element Method.” MATERIALS & DESIGN 206. doi:10.1016/j.matdes.2021.109794.
Vancouver
1.
Zhao Q, Abdel Wahab M, Ling Y, Liu Z. Grain-orientation induced stress formation in AA2024 monocrystal and bicrystal using Crystal Plasticity Finite Element Method. MATERIALS & DESIGN. 2021;206.
IEEE
[1]
Q. Zhao, M. Abdel Wahab, Y. Ling, and Z. Liu, “Grain-orientation induced stress formation in AA2024 monocrystal and bicrystal using Crystal Plasticity Finite Element Method,” MATERIALS & DESIGN, vol. 206, 2021.
@article{8710065,
  abstract     = {{Stress formation of monocrystals and bicrystals is investigated in specific oriented grains and grain boundaries of AA2024 alloy by using Crystal Plasticity Finite Element Method (CPFEM). The simulations show that the maximum Schmid factor (SF) value and the number of equivalent initial slip system (EISS) play a principal role in controlling the magnitude of internal stress within monocrystals. For bicrystal model, Goss and Cube grains are not the best ones for relieving stress concentration caused by their orientations, but they are the best ones for relieving grain boundary (GB) stress concentration. To this end, the dependence relations are discussed between GB stress and an advanced comprehensive factor combining SF, and geometry compatibility factor for 5 independent slip systems. It is found that this proposed comprehensive factor considering the contribution from 5 to independent slip systems effectively improves its dependence on GB stress. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).}},
  articleno    = {{109794}},
  author       = {{Zhao, Qi and Abdel Wahab, Magd and Ling, Yong and Liu, Zhiyi}},
  issn         = {{0264-1275}},
  journal      = {{MATERIALS & DESIGN}},
  keywords     = {{Mechanical Engineering,General Materials Science,Mechanics of Materials,AA2024 alloy,Goss orientation,Grain boundary,Crystal plasticity,Finite element method,Dislocation interaction}},
  language     = {{eng}},
  pages        = {{21}},
  title        = {{Grain-orientation induced stress formation in AA2024 monocrystal and bicrystal using Crystal Plasticity Finite Element Method}},
  url          = {{http://doi.org/10.1016/j.matdes.2021.109794}},
  volume       = {{206}},
  year         = {{2021}},
}
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