High magnification crack-tip field characterisation under biaxial conditions
This work presents a novel methodology for characterising fatigue cracks under biaxial conditions. The methodology uses high magnification Digital Image Correlation (DIC) technique for measuring displacement and strain crack-tip fields. By applying micro-speckle pattern on the metal surface it is po...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2013-04-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/221 |
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| author | B. Moreno P. Lopez-Crespo J. Zapatero |
| author_facet | B. Moreno P. Lopez-Crespo J. Zapatero |
| author_sort | B. Moreno |
| collection | DOAJ |
| description | This work presents a novel methodology for characterising fatigue cracks under biaxial conditions. The methodology uses high magnification Digital Image Correlation (DIC) technique for measuring displacement and strain crack-tip fields. By applying micro-speckle pattern on the metal surface it is possible to achieve high magnification for DIC technique. The speckles were created by electro-spray technique. The validity of this novel technique is demonstrated by direct comparison with standard extensometer measurements, under tension-compression and torsion conditions. In order to image the correct region, the notch effect on the fatigue life was also evaluated. |
| format | Article |
| id | doaj-art-bf21e3950dd941e79962a7b9b57b389e |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2013-04-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-bf21e3950dd941e79962a7b9b57b389e2025-01-03T00:40:27ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932013-04-01725High magnification crack-tip field characterisation under biaxial conditionsB. MorenoP. Lopez-CrespoJ. ZapateroThis work presents a novel methodology for characterising fatigue cracks under biaxial conditions. The methodology uses high magnification Digital Image Correlation (DIC) technique for measuring displacement and strain crack-tip fields. By applying micro-speckle pattern on the metal surface it is possible to achieve high magnification for DIC technique. The speckles were created by electro-spray technique. The validity of this novel technique is demonstrated by direct comparison with standard extensometer measurements, under tension-compression and torsion conditions. In order to image the correct region, the notch effect on the fatigue life was also evaluated.https://www.fracturae.com/index.php/fis/article/view/221Biaxial fatigue |
| spellingShingle | B. Moreno P. Lopez-Crespo J. Zapatero High magnification crack-tip field characterisation under biaxial conditions Fracture and Structural Integrity Biaxial fatigue |
| title | High magnification crack-tip field characterisation under biaxial conditions |
| title_full | High magnification crack-tip field characterisation under biaxial conditions |
| title_fullStr | High magnification crack-tip field characterisation under biaxial conditions |
| title_full_unstemmed | High magnification crack-tip field characterisation under biaxial conditions |
| title_short | High magnification crack-tip field characterisation under biaxial conditions |
| title_sort | high magnification crack tip field characterisation under biaxial conditions |
| topic | Biaxial fatigue |
| url | https://www.fracturae.com/index.php/fis/article/view/221 |
| work_keys_str_mv | AT bmoreno highmagnificationcracktipfieldcharacterisationunderbiaxialconditions AT plopezcrespo highmagnificationcracktipfieldcharacterisationunderbiaxialconditions AT jzapatero highmagnificationcracktipfieldcharacterisationunderbiaxialconditions |