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https://bura.brunel.ac.uk/handle/2438/13052| Title: | Measurement and prediction of CTOD in austenitic stainless steel |
| Authors: | Khor, W Moore, P Pisarski, H Haslett, M Brown, CJ |
| Issue Date: | 26-Jul-2016 |
| Publisher: | Wiley |
| Citation: | Khor, W. et al. (2016) 'Measurement and prediction of CTOD in austenitic stainless steel', Fatigue and Fracture of Engineering Materials and Structures, 39 (11), pp. 1433–1442. doi: 10.1111/ffe.12487. |
| Abstract: | Variation of Crack Tip Opening Displacement (CTOD) test values can have a significant effect on the Engineering Critical Assessment of a structure. This paper examines the development of CTOD with increasing load in an austenitic stainless steel. The silicone replication method giving variation of CTOD across the specimen thickness, and Digital Image Correlation (DIC) are compared to each other, and in turn to clip gauge measurements from tests. Results from Finite Element models are also presented. Estimations of CTOD from BS 7448-1, ISO 12135 and ASTM E1820, and a proposed modification from JWES are compared to the experimental data from the crack cast in silicone compound – assumed to be the actual CTOD. The DIC measurement showed consistency with crack replicas, and a formula is given to estimate CTOD using DIC. For high strain hardening austenitic stainless steel, both the JWES and ASTM E1820 estimations provide adequate accuracy for CTOD. |
| Description: | Acknowledgements: The authors wish to acknowledge the funding and facility provided by TWI and NSIRC for this work. The authors also wish to thank Philip Cossey and Dan Bloom for assistance in the crack replication tests, Mark Tinkler for the setup of the DIC equipment and Prof. Tetsuya Tagawa for the updates and discussion on the silicone crack replication method. |
| URI: | https://bura.brunel.ac.uk/handle/2438/13052 |
| DOI: | https://doi.org/10.1111/ffe.12487 |
| ISSN: | 8756-758X |
| Other Identifiers: | ORCiD: P. L. Moore https://orcid.org/0000-0002-2121-7669 ORCiD: C. J. Brown https://orcid.org/0000-0001-6155-0717 |
| Appears in Collections: | Department of Mechanical and Aerospace Engineering Research Papers |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| FullText.pdf | Copyright © 2016 The Authors. Fatigue & Fracture of Engineering Materials & Structures Published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | 639.63 kB | Adobe PDF | View/Open |
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