Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stress
In this paper, a new experimental technique for measuring Stress Intensity Factor (SIF) and T-stress under mode I loading is developed. The expressions of the normal and tangential strains close to the crack tip are given using the first five terms of the generalized Westergaard formulation. In orde...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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D. G. Pylarinos
2017-10-01
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| Series: | Engineering, Technology & Applied Science Research |
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| Online Access: | https://etasr.com/index.php/ETASR/article/view/1396 |
| _version_ | 1798001190673317888 |
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| author | A. Hamdi N. Benseddiq F. Mejni |
| author_facet | A. Hamdi N. Benseddiq F. Mejni |
| author_sort | A. Hamdi |
| collection | DOAJ |
| description | In this paper, a new experimental technique for measuring Stress Intensity Factor (SIF) and T-stress under mode I loading is developed. The expressions of the normal and tangential strains close to the crack tip are given using the first five terms of the generalized Westergaard formulation. In order to accurately determine the SIF and T-stress, the method exploits the optimal positioning of a rectangular strain gage rosette near a crack tip in mode I. Thus, errors due to the higher order terms of the asymptotic expansion are eliminated. Finally, a comparison of the analytical results with a finite element calculations, for different specimen dimensions, is carried out. |
| first_indexed | 2024-04-11T11:33:18Z |
| format | Article |
| id | doaj.art-2467365bb777493f8d5bc474941b43be |
| institution | Directory Open Access Journal |
| issn | 2241-4487 1792-8036 |
| language | English |
| last_indexed | 2024-04-11T11:33:18Z |
| publishDate | 2017-10-01 |
| publisher | D. G. Pylarinos |
| record_format | Article |
| series | Engineering, Technology & Applied Science Research |
| spelling | doaj.art-2467365bb777493f8d5bc474941b43be2022-12-22T04:26:04ZengD. G. PylarinosEngineering, Technology & Applied Science Research2241-44871792-80362017-10-01751922192910.48084/etasr.13961074Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stressA. Hamdi0N. Benseddiq1F. Mejni2El Manar Preparatory Institute for Engineering Studies, Tunis, TunisiaLaboratoire de Mécanique de Lille (LML), University of Lille1, FranceLaboratoire de Mécanique de Lille (LML), University of Lille1, FranceIn this paper, a new experimental technique for measuring Stress Intensity Factor (SIF) and T-stress under mode I loading is developed. The expressions of the normal and tangential strains close to the crack tip are given using the first five terms of the generalized Westergaard formulation. In order to accurately determine the SIF and T-stress, the method exploits the optimal positioning of a rectangular strain gage rosette near a crack tip in mode I. Thus, errors due to the higher order terms of the asymptotic expansion are eliminated. Finally, a comparison of the analytical results with a finite element calculations, for different specimen dimensions, is carried out.https://etasr.com/index.php/ETASR/article/view/1396fracture toughnessstress intensity factort-stressstrain gagefinite element method |
| spellingShingle | A. Hamdi N. Benseddiq F. Mejni Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stress Engineering, Technology & Applied Science Research fracture toughness stress intensity factor t-stress strain gage finite element method |
| title | Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stress |
| title_full | Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stress |
| title_fullStr | Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stress |
| title_full_unstemmed | Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stress |
| title_short | Rectangular Strain-Rosette Method for Measuring the Mode I Stress-Intensity Factor KI and T-stress |
| title_sort | rectangular strain rosette method for measuring the mode i stress intensity factor ki and t stress |
| topic | fracture toughness stress intensity factor t-stress strain gage finite element method |
| url | https://etasr.com/index.php/ETASR/article/view/1396 |
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