Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Detecting and monitoring cracks in aerospace materials using post-processing of TSA and AE data

Middleton, Ceri A., McCrory, John P., Greene, Richard J., Holford, Karen and Patterson, Eann A. 2019. Detecting and monitoring cracks in aerospace materials using post-processing of TSA and AE data. Metals 9 (7) , p. 748. 10.3390/met9070748

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview

Abstract

Thermoelastic stress analysis (TSA) is a non-contact technique for measuring the distribution of stress in the surface of a component subject to cyclic loading by using a sensitive infrared camera. The stress concentrations indicative of a crack can be located and tracked using an optical flow method, allowing the position of the crack-tip to be identified at a given time. Acoustic emission (AE) has been used to validate the TSA algorithm. AE events from cracking, located using the Delta-T Mapping method, were detected several seconds before the TSA algorithm first detected cracking; however, TSA provided significantly more accurate location information.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: MDPI
ISSN: 2075-4701
Funders: EU Framework Programme for Research and Innovation Horizon 2020 Clean Sky 2 and Cardiff University
Date of First Compliant Deposit: 29 July 2019
Date of Acceptance: 4 July 2019
Last Modified: 05 Nov 2019 03:52
URI: http://orca.cf.ac.uk/id/eprint/124533

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics