V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomes
The fictitious notch rounding concept is applied for the first time to V-notches with root hole subjected to in-plane mixed mode loading. Outof- bisector crack propagation is taken into account. The fictitious notch radius is determined as a function of the real notch radius, the microstructural sup...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2017-06-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/1913 |
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| author | F. Berto |
| author_facet | F. Berto |
| author_sort | F. Berto |
| collection | DOAJ |
| description | The fictitious notch rounding concept is applied for the first time to V-notches with root hole subjected to in-plane mixed mode loading. Outof- bisector crack propagation is taken into account. The fictitious notch radius is determined as a function of the real notch radius, the microstructural support length and the notch opening angle. Due to the complexity of the problem, a method based on the simple normal stress failure criterion has been used. It is combined with the maximum tangential stress criterion to determine the crack propagation angle. An analytical method based on Neuber's procedure has been developed. The method provides the values of the microstructural support factor as a function of the mode ratio and the notch opening angle. The support factor is considered to be independent of the microstructural support length. Finally, for comparison, the support factor is determined on a purely numerical basis by iterative analysis of FE models. |
| format | Article |
| id | doaj-art-a61a49925c9d4704ae978eb09175a6f2 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2017-06-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-a61a49925c9d4704ae978eb09175a6f22025-01-03T00:40:22ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932017-06-011141V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomesF. BertoThe fictitious notch rounding concept is applied for the first time to V-notches with root hole subjected to in-plane mixed mode loading. Outof- bisector crack propagation is taken into account. The fictitious notch radius is determined as a function of the real notch radius, the microstructural support length and the notch opening angle. Due to the complexity of the problem, a method based on the simple normal stress failure criterion has been used. It is combined with the maximum tangential stress criterion to determine the crack propagation angle. An analytical method based on Neuber's procedure has been developed. The method provides the values of the microstructural support factor as a function of the mode ratio and the notch opening angle. The support factor is considered to be independent of the microstructural support length. Finally, for comparison, the support factor is determined on a purely numerical basis by iterative analysis of FE models.https://www.fracturae.com/index.php/fis/article/view/1913Fictitious notch roundingMixed mode loadingV-notches with root holeMicrostructural support |
| spellingShingle | F. Berto V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomes Fracture and Structural Integrity Fictitious notch rounding Mixed mode loading V-notches with root hole Microstructural support |
| title | V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomes |
| title_full | V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomes |
| title_fullStr | V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomes |
| title_full_unstemmed | V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomes |
| title_short | V-notch tip subjected to in-plane mixed mode loading: overview of recent results and possible future outcomes |
| title_sort | v notch tip subjected to in plane mixed mode loading overview of recent results and possible future outcomes |
| topic | Fictitious notch rounding Mixed mode loading V-notches with root hole Microstructural support |
| url | https://www.fracturae.com/index.php/fis/article/view/1913 |
| work_keys_str_mv | AT fberto vnotchtipsubjectedtoinplanemixedmodeloadingoverviewofrecentresultsandpossiblefutureoutcomes |