The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys
Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Matvienko, Yu.G. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2004 |
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| Schlagwörter: |
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| Anmerkung: |
© Kluwer Academic Publishers 2004 |
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| Übergeordnetes Werk: |
Enthalten in: International journal of fracture - Kluwer Academic Publishers, 1973, 128(2004), 1-4 vom: Juli, Seite 73-79 |
|---|---|
| Übergeordnetes Werk: |
volume:128 ; year:2004 ; number:1-4 ; month:07 ; pages:73-79 |
| Links: |
|---|
| DOI / URN: |
10.1023/B:FRAC.0000040969.02493.09 |
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OLC2036612822 |
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| 520 | |a Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. | ||
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10.1023/B:FRAC.0000040969.02493.09 doi (DE-627)OLC2036612822 (DE-He213)B:FRAC.0000040969.02493.09-p DE-627 ger DE-627 rakwb eng 530 600 670 VZ Matvienko, Yu.G. verfasserin aut The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2004 Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. Fracture Toughness Hydride Process Zone Cohesive Zone Fracture Process Zone Enthalten in International journal of fracture Kluwer Academic Publishers, 1973 128(2004), 1-4 vom: Juli, Seite 73-79 (DE-627)129399345 (DE-600)186249-2 (DE-576)014782154 0376-9429 nnns volume:128 year:2004 number:1-4 month:07 pages:73-79 https://doi.org/10.1023/B:FRAC.0000040969.02493.09 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4319 GBV_ILN_4700 AR 128 2004 1-4 07 73-79 |
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10.1023/B:FRAC.0000040969.02493.09 doi (DE-627)OLC2036612822 (DE-He213)B:FRAC.0000040969.02493.09-p DE-627 ger DE-627 rakwb eng 530 600 670 VZ Matvienko, Yu.G. verfasserin aut The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2004 Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. Fracture Toughness Hydride Process Zone Cohesive Zone Fracture Process Zone Enthalten in International journal of fracture Kluwer Academic Publishers, 1973 128(2004), 1-4 vom: Juli, Seite 73-79 (DE-627)129399345 (DE-600)186249-2 (DE-576)014782154 0376-9429 nnns volume:128 year:2004 number:1-4 month:07 pages:73-79 https://doi.org/10.1023/B:FRAC.0000040969.02493.09 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4319 GBV_ILN_4700 AR 128 2004 1-4 07 73-79 |
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10.1023/B:FRAC.0000040969.02493.09 doi (DE-627)OLC2036612822 (DE-He213)B:FRAC.0000040969.02493.09-p DE-627 ger DE-627 rakwb eng 530 600 670 VZ Matvienko, Yu.G. verfasserin aut The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2004 Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. Fracture Toughness Hydride Process Zone Cohesive Zone Fracture Process Zone Enthalten in International journal of fracture Kluwer Academic Publishers, 1973 128(2004), 1-4 vom: Juli, Seite 73-79 (DE-627)129399345 (DE-600)186249-2 (DE-576)014782154 0376-9429 nnns volume:128 year:2004 number:1-4 month:07 pages:73-79 https://doi.org/10.1023/B:FRAC.0000040969.02493.09 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4319 GBV_ILN_4700 AR 128 2004 1-4 07 73-79 |
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10.1023/B:FRAC.0000040969.02493.09 doi (DE-627)OLC2036612822 (DE-He213)B:FRAC.0000040969.02493.09-p DE-627 ger DE-627 rakwb eng 530 600 670 VZ Matvienko, Yu.G. verfasserin aut The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2004 Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. Fracture Toughness Hydride Process Zone Cohesive Zone Fracture Process Zone Enthalten in International journal of fracture Kluwer Academic Publishers, 1973 128(2004), 1-4 vom: Juli, Seite 73-79 (DE-627)129399345 (DE-600)186249-2 (DE-576)014782154 0376-9429 nnns volume:128 year:2004 number:1-4 month:07 pages:73-79 https://doi.org/10.1023/B:FRAC.0000040969.02493.09 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4319 GBV_ILN_4700 AR 128 2004 1-4 07 73-79 |
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10.1023/B:FRAC.0000040969.02493.09 doi (DE-627)OLC2036612822 (DE-He213)B:FRAC.0000040969.02493.09-p DE-627 ger DE-627 rakwb eng 530 600 670 VZ Matvienko, Yu.G. verfasserin aut The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys 2004 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2004 Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. Fracture Toughness Hydride Process Zone Cohesive Zone Fracture Process Zone Enthalten in International journal of fracture Kluwer Academic Publishers, 1973 128(2004), 1-4 vom: Juli, Seite 73-79 (DE-627)129399345 (DE-600)186249-2 (DE-576)014782154 0376-9429 nnns volume:128 year:2004 number:1-4 month:07 pages:73-79 https://doi.org/10.1023/B:FRAC.0000040969.02493.09 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_21 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_602 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_4046 GBV_ILN_4319 GBV_ILN_4700 AR 128 2004 1-4 07 73-79 |
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Matvienko, Yu.G. |
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the cohesive zone model in a problem of delayed hydride cracking of zirconium alloys |
| title_auth |
The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys |
| abstract |
Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. © Kluwer Academic Publishers 2004 |
| abstractGer |
Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. © Kluwer Academic Publishers 2004 |
| abstract_unstemmed |
Abstract The crack tip model with the cohesive zone ahead of a finite crack tip has been presented. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration, according to Westergaard's theory, with the cohesive stress. To calculate the cohesive stress, von Mises yield condition at the boundary of the cohesive zone is employed for plane strain and plane stress. The model of the stress distribution with the maximum stress within the cohesive zone is discussed. Local criterion of brittle fracture and modelling of the fracture process zone by cohesive zone were used to describe fracture initiation at the hydride platelet in the process zone ahead of the crack tip. It was shown that the theoretical KIH-estimation applied to the case of mixed plane condition within the process zone is qualitatively consistent with experimental data for unirradiated Zr-2.5Nb alloy. In the framework of the proposed model, the theoretical value of KHIC for a single hydride platelet at the crack tip has been also estimated. © Kluwer Academic Publishers 2004 |
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The cohesive zone model in a problem of delayed hydride cracking of zirconium alloys |
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