Fracture Mechanics Approach to Fatigue Crack Propagation: Measurements and Observation

Milella, Pietro Paolo

doi:10.1007/978-88-470-2336-9_10

Cited by 1 publication

(2 citation statements)

References 22 publications

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“…Besides, the behavior of fatigue crack growth is related to the initial shape of surface crack (e.g. the ratio of a 0 /c 0 (Milella, 2013)). Surface crack propagation can be divided into two stages (Zhang et al, 2012) as for the surface crack with 0.2 a 0 / c 0 0.4.…”

Section: Surface Crack Monitoringmentioning

confidence: 99%

“…Compared with chipless tag, chip-based tags suffer from the disadvantage of metallic environment sensitivity (Zhang et al, 2017). They are more suitable to monitor concrete or composite structures (Occhiuzzi et al, 2011, Bruciati et al, 2019 unless tag is designed according to microstrip antenna or the thickness of tag's substrate is increased to separate tag antenna from metallic structure (He andPan, 2013, Martínez-Castro et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Surface crack detection and monitoring in metal structure using RFID tag

Xu¹,

Dong²,

Wang³

et al. 2020

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Purpose RFID tags for sensing are available to operate and transmit sensing data to measurement equipment without battery and wires, which is a great advantage in establishing IoT environment. For crack sensing tags, however, the short service life of tags restricted their application. This paper aims to introduce a method of surface crack detection and monitoring based on RFID tag, which makes it possible for tags to be reused. Design/methodology/approach Metal plate to be monitored, acting as the ground plane of microstrip patch antenna, is underneath the crack sensing tag. The propagating surface crack in metal plate will change the electric length of tag’s antenna that is directly proportional to the crack depth and length. Thus, the deformation of sensing tag introduced by the load on metal structure is no longer a prerequisite for crack sensing. Findings The simulated and experimental results show that the proposed crack sensing tag can sense the change of surface crack with mm-resolution and sense surface crack propagation without a deformation, which means the proposed crack sensing tag can be reused. Originality/value The key advantage of the proposed method is the reusability of the RFID tags.

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Section: Surface Crack Monitoringmentioning

confidence: 99%