Quantitative analysis of the Hsu-Nielsen source through advanced measurement and simulation techniques.

Abolle-Okoyeagu, C.J.; Fatukasi, Oluseyi; Droubi, Ghazi; Reuben, R.L.

Abstract

This paper presents the results from conducting a series of experiments with a Hsu-Nielsen Source, accompanied by corresponding numerical simulations on a solid block. The aim being to illustrate a Finite Element Analysis (FEA) approach for simulating Acoustic Emission (AE) wave propagation in a Hsu-Nielsen Source, by employing virtual sensors to enhance existing AE research methodologies. The objective was to examine and establish the actual unload rate derived from Pencil Lead Breaks (PLBs) by comparing results from simulations and experimental trials. These experiments and simulations were conducted using a solid cylindrical steel block, capturing the propagating Acoustic AE waves from both sources over a two-second span. When comparing the experimental data with the simulation results, it is evident that replicating the structure of an impulsive AE source is feasible for brief durations. Furthermore, both the experimental and simulated signals on the steel cylinder displayed comparable patterns in the initial 25-30 µs. The methodology presented in this study demonstrates the effectiveness of Finite Element Analysis (FEA) in precisely identifying the specific modes present in AE wave propagation, including the actual unload rates affecting the AE signals recorded.

Citation

ABOLLE-OKOYEAGU, C.J., FATUKASI, O., DROUBI, G. and REUBEN, R.L. 2024. Quantitative analysis of the Hsu-Nielsen source through advanced measurement and simulation techniques. Journal of physics: conference series [online], 2805: proceedings of the 8th International conference on mechanical, aeronautical and automotive engineering 2024 (ICMAA 2024), 02-04 February 2024, Penang, Malaysia: [virtual event], article 012013. Available from: https://doi.org/10.1088/1742-6596/2805/1/012013

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 8th International conference on mechanical, aeronautical and automotive engineering 2024 (ICMAA 2024)
• Start Date: Feb 2, 2024
• End Date: Feb 4, 2024
• Acceptance Date: Jul 11, 2024
• Online Publication Date: Aug 12, 2024
• Publication Date: Dec 31, 2024
• Deposit Date: Feb 11, 2024
• Publicly Available Date: Aug 13, 2024
• Journal: Journal of physics: conference series
• Print ISSN: 1742-6588
• Electronic ISSN: 1742-6596
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 2805
• Article Number: 012013
• Series Title: IOP conference series
• DOI: https://doi.org/10.1088/1742-6596/2805/1/012013
• Keywords: Acoustic emission wave propagation; Acoustic emissions; High-frequencies; Non-destructive testing
• Public URL: https://rgu-repository.worktribe.com/output/2242553
• Additional Information: The file associated with this output contains the article as published in the conference proceedings and the slide presentation presented at the conference, which have been combined into a single file on this repository.