| DOI | Resolve DOI: https://doi.org/10.12783/shm2019/32218 |
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| Author | Search for: Pant, S.1; Search for: Backman, D.1; Search for: Keum, P.1; Search for: Martinez, M.; Search for: Patnaik, P.1 |
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| Affiliation | - National Research Council Canada. Aerospace
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| Format | Text, Article |
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| Conference | 12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019, September 10-12, 2019, Stanford, CA, USA |
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| Abstract | This paper focuses on exploring the repeatability of Structural Health Monitoring (SHM) sensors to detect fatigue cracks emanating from crack-starter notches in 0.063 inches (1.6 mm) thick, aluminium 7075-T6 panels, measuring 12 by 24 inches (304.8 by 609.6 mm) in a room temperature environment. Three panels were tested in total, where each panel had three 0.25 inches (6.35 mm) diameter holes, drilled at 3 inches (76.2 mm) apart along the vertical centre of the plates. Two outer holes had electrical discharge machining notches for starting fatigue cracks. Four different SHM technologies: acoustic ultrasonic, National Research Council developed crack foil sensor, resistance wire strain gauges, and thermoelastic stress analysis, were evaluated for their ability to repeatedly and reliably detect growing fatigue cracks. Repeatability in the context of this work is defined as using the same SHM sensor systems on identical test coupons to see if the same level of detection and/or trend could be achieved. |
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| Publication date | 2019-09-10 |
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| Publisher | DEStech Publications, Inc. |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 4ed91005-13d4-4f02-8e26-6a21c2fdc8c4 |
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| Record created | 2021-03-04 |
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| Record modified | 2021-03-04 |
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