On the suitability of single-edge notch tension (SENT) testing for assessing hydrogen-assisted cracking susceptibility
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866911857006084096 |
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| author | Cupertino-Malheiros, L. Mandal, T. K. Thebault, F. Martínez-Pañeda, E. |
| author_facet | Cupertino-Malheiros, L. Mandal, T. K. Thebault, F. Martínez-Pañeda, E. |
| contents | Combined experiments and computational modelling are used to increase understanding of the suitability of the Single-Edge Notch Tension (SENT) test for assessing hydrogen embrittlement susceptibility. The SENT tests were designed to provide the mode I threshold stress intensity factor ($K_{\text{th}}$) for hydrogen-assisted cracking of a C110 steel in two corrosive environments. These were accompanied by hydrogen permeation experiments to relate the environments to the absorbed hydrogen concentrations. A coupled phase-field-based deformation-diffusion-fracture model is then employed to simulate the SENT tests, predicting $K_{\text{th}}$ in good agreement with the experimental results and providing insights into the hydrogen absorption-diffusion-cracking interactions. The suitability of SENT testing and its optimal characteristics (e.g., test duration) are discussed in terms of the various simultaneous active time-dependent phenomena, triaxiality dependencies, and regimes of hydrogen embrittlement susceptibility. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_18223 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | On the suitability of single-edge notch tension (SENT) testing for assessing hydrogen-assisted cracking susceptibility Cupertino-Malheiros, L. Mandal, T. K. Thebault, F. Martínez-Pañeda, E. Computational Engineering, Finance, and Science Materials Science Applied Physics Chemical Physics Combined experiments and computational modelling are used to increase understanding of the suitability of the Single-Edge Notch Tension (SENT) test for assessing hydrogen embrittlement susceptibility. The SENT tests were designed to provide the mode I threshold stress intensity factor ($K_{\text{th}}$) for hydrogen-assisted cracking of a C110 steel in two corrosive environments. These were accompanied by hydrogen permeation experiments to relate the environments to the absorbed hydrogen concentrations. A coupled phase-field-based deformation-diffusion-fracture model is then employed to simulate the SENT tests, predicting $K_{\text{th}}$ in good agreement with the experimental results and providing insights into the hydrogen absorption-diffusion-cracking interactions. The suitability of SENT testing and its optimal characteristics (e.g., test duration) are discussed in terms of the various simultaneous active time-dependent phenomena, triaxiality dependencies, and regimes of hydrogen embrittlement susceptibility. |
| title | On the suitability of single-edge notch tension (SENT) testing for assessing hydrogen-assisted cracking susceptibility |
| topic | Computational Engineering, Finance, and Science Materials Science Applied Physics Chemical Physics |
| url | https://arxiv.org/abs/2404.18223 |