Monitoring of crack propagation using a cluster of piezo-sensors
| dc.contributor.author | Wildy, S. | |
| dc.contributor.author | Lee, C. | |
| dc.contributor.author | Yong, S. | |
| dc.contributor.conference | Australasian Congress on Applied Mechanics (5th : 2007 : Brisbane, Australia) | |
| dc.contributor.editor | Martin Veidt, | |
| dc.date.issued | 2007 | |
| dc.description.abstract | This paper describes the investigation of a probabilistic method for crack propagation monitoring in plate- or shell-like structures, which utilizes a cluster of passive piezoelectric sensors. The method allows for the determination of the crack tip location and stress intensity factor (SIF) of a relatively long crack in the vicinity of the cluster, with predetermined or specified accuracy of monitoring. An analytical deterministic model for the response of a piezo-sensor located in the vicinity of a crack tip was developed, based on previously published work. Probabilistic characteristics of the piezo-sensor response were obtained experimentally for a wide range of loading conditions. The analysis is derived from a solution of the inverse problem for the cluster and Monte-Carlo simulations utilising the experimentally obtained probabilistic characteristics of the piezo-sensor response. If the crack path can be identified beforehand, then the analysis provides the optimal cluster design for monitoring the crack extension with a required accuracy. Also, a series of clusters can be used to monitor large crack advances. | |
| dc.description.statementofresponsibility | Stuart Wildy, Cian Lee and Shi Yong | |
| dc.identifier.citation | Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007) / Martin Veidt ... [et al.] (eds.):pp.366-371 | |
| dc.identifier.isbn | 0858258625 | |
| dc.identifier.uri | http://hdl.handle.net/2440/44999 | |
| dc.language.iso | en | |
| dc.publisher | Engineers Australia | |
| dc.publisher.place | Australia | |
| dc.title | Monitoring of crack propagation using a cluster of piezo-sensors | |
| dc.type | Conference paper | |
| pubs.publication-status | Published |