Labib, Amr, Kennedy, David ORCID: https://orcid.org/0000-0002-8837-7296 and Featherston, Carol Ann ORCID: https://orcid.org/0000-0001-7548-2882 2015. Crack localisation in frames using natural frequency degradations. Computers & Structures 157 , pp. 51-59. 10.1016/j.compstruc.2015.05.001 |
Abstract
A new method is devised for locating a single crack in a frame using natural frequency degradations. Simulated noise free and contaminated natural frequency measurements are considered. The frame is discretised into a number of points. Selected natural frequencies are calculated using the Wittrick–Williams algorithm in the uncracked case and when the crack is placed at each point individually. The variation between the uncracked and cracked frequencies is normalised in the analytical and measured cases. Exact simulations yield point crack locations. Applying interval arithmetic, simulated contaminated measurements give crack location ranges. The combined ranges are illustrated by empirical probability distributions.
Item Type: | Article |
---|---|
Date Type: | Publication |
Status: | Published |
Schools: | Engineering |
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
Additional Information: | Available online 29 May 2015 |
Publisher: | Elsevier |
ISSN: | 0045-7949 |
Date of Acceptance: | 5 May 2015 |
Last Modified: | 06 Jan 2024 03:55 |
URI: | https://orca.cardiff.ac.uk/id/eprint/76324 |
Citation Data
Cited 25 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)
Edit Item |