Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element Method
A multi-scale prediction method was proposed to investigate the scatter of fracture toughness by combining the local approach (LA) to cleavage fracture and the crystal plasticity finite element method (CPFEM). The parameters in the crystal plasticity constitutive model were firstly determined by com...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/5/872 |
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| author | Zhibo He Chen Li Yuebing Li Weiya Jin Zengliang Gao |
| author_facet | Zhibo He Chen Li Yuebing Li Weiya Jin Zengliang Gao |
| author_sort | Zhibo He |
| collection | DOAJ |
| description | A multi-scale prediction method was proposed to investigate the scatter of fracture toughness by combining the local approach (LA) to cleavage fracture and the crystal plasticity finite element method (CPFEM). The parameters in the crystal plasticity constitutive model were firstly determined by comparing the simulated stress-strain curves with tested curves for SA508-III steel. Then CT samples were modeled using the CPFEM to calculate Weibull stress. Using the calibration process of local approach, the relevant parameters of the Beremin model were obtained with <i>m</i> = 30 and <i>σ</i><sub>u</sub> = 2590 MPa. The fracture toughness was analyzed including the scatter for a given temperature, the master curve in a temperature range. The distribution of predicted fracture toughness shows good agreement with the test results. All of the tested fracture toughness value are fall in the range of 5% to 95% that precited using the proposed combined approach. |
| first_indexed | 2024-03-10T03:24:46Z |
| format | Article |
| id | doaj.art-1afc80bda6ec4eaeba6627592fc6ec87 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T03:24:46Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-1afc80bda6ec4eaeba6627592fc6ec872023-11-23T12:10:39ZengMDPI AGMetals2075-47012022-05-0112587210.3390/met12050872Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element MethodZhibo He0Chen Li1Yuebing Li2Weiya Jin3Zengliang Gao4College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, ChinaShanghai Nuclear Engineering Research & Design Institute Co., Ltd., Shanghai 200233, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, ChinaCollege of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, ChinaA multi-scale prediction method was proposed to investigate the scatter of fracture toughness by combining the local approach (LA) to cleavage fracture and the crystal plasticity finite element method (CPFEM). The parameters in the crystal plasticity constitutive model were firstly determined by comparing the simulated stress-strain curves with tested curves for SA508-III steel. Then CT samples were modeled using the CPFEM to calculate Weibull stress. Using the calibration process of local approach, the relevant parameters of the Beremin model were obtained with <i>m</i> = 30 and <i>σ</i><sub>u</sub> = 2590 MPa. The fracture toughness was analyzed including the scatter for a given temperature, the master curve in a temperature range. The distribution of predicted fracture toughness shows good agreement with the test results. All of the tested fracture toughness value are fall in the range of 5% to 95% that precited using the proposed combined approach.https://www.mdpi.com/2075-4701/12/5/872fracture toughnesscrystal plastic finite elementBeremin local approachmaster curve |
| spellingShingle | Zhibo He Chen Li Yuebing Li Weiya Jin Zengliang Gao Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element Method Metals fracture toughness crystal plastic finite element Beremin local approach master curve |
| title | Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element Method |
| title_full | Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element Method |
| title_fullStr | Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element Method |
| title_full_unstemmed | Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element Method |
| title_short | Prediction of Fracture Toughness Scatter Based on Weibull Stress Using Crystal Plasticity Finite Element Method |
| title_sort | prediction of fracture toughness scatter based on weibull stress using crystal plasticity finite element method |
| topic | fracture toughness crystal plastic finite element Beremin local approach master curve |
| url | https://www.mdpi.com/2075-4701/12/5/872 |
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