Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)

This paper reports on the results of the second part of a round-robin programme designed to assess the accuracy of TFM (Total Focussing Method) sizing as it relates to probability of detection truth values. Part 1 of the programme involved analysis of flaw responses simulated using the FMC (Full Ma...

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Main Authors: Mariana Burrowes M. Guimarães, Edward Ginzel, Gabriela Ribeiro Pereira, Cesar Giron Camerini
Format: Article
Language:deu
Published: NDT.net 2025-01-01
Series:e-Journal of Nondestructive Testing
Online Access:https://www.ndt.net/search/docs.php3?id=30605
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author Mariana Burrowes M. Guimarães
Edward Ginzel
Gabriela Ribeiro Pereira
Cesar Giron Camerini
Cesar Giron Camerini
author_facet Mariana Burrowes M. Guimarães
Edward Ginzel
Gabriela Ribeiro Pereira
Cesar Giron Camerini
Cesar Giron Camerini
author_sort Mariana Burrowes M. Guimarães
collection DOAJ
description This paper reports on the results of the second part of a round-robin programme designed to assess the accuracy of TFM (Total Focussing Method) sizing as it relates to probability of detection truth values. Part 1 of the programme involved analysis of flaw responses simulated using the FMC (Full Matrix Capture) method of acquisition in CIVA simulation software. The report [1] noted that the mean standard deviation of height-sizing error for all participants 0.56mm and the mean standard deviation of error for ligament sizing was 0.88mm. CIVA simulation software is well known for its ability to reproduce ultrasonic results; however, software simulation cannot fully represent the human factors of uncertainty. To address the human factors, a second part to the programme was organised whereby welds with seeded flaws were provided to volunteers from several labs. Their task was to scan the welds using an acquisition format compatible with a TFM algorithm and analyse the data using the TFM algorithm of their choice. Height, length and smallest ligament was to be reported. This report summarises the statistical findings of Part 2 of the programme.
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institution Kabale University
issn 1435-4934
language deu
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publisher NDT.net
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series e-Journal of Nondestructive Testing
spelling doaj-art-daefe154e1a849feac76f8795075d1412025-02-06T10:48:46ZdeuNDT.nete-Journal of Nondestructive Testing1435-49342025-01-0130110.58286/30605Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)Mariana Burrowes M. Guimarãeshttps://orcid.org/0000-0001-6829-0460Edward GinzelGabriela Ribeiro Pereirahttps://orcid.org/0000-0003-3719-1683Cesar Giron Camerinihttps://orcid.org/0000-0002-4591-8582Cesar Giron Camerinihttps://orcid.org/0000-0002-4591-8582 This paper reports on the results of the second part of a round-robin programme designed to assess the accuracy of TFM (Total Focussing Method) sizing as it relates to probability of detection truth values. Part 1 of the programme involved analysis of flaw responses simulated using the FMC (Full Matrix Capture) method of acquisition in CIVA simulation software. The report [1] noted that the mean standard deviation of height-sizing error for all participants 0.56mm and the mean standard deviation of error for ligament sizing was 0.88mm. CIVA simulation software is well known for its ability to reproduce ultrasonic results; however, software simulation cannot fully represent the human factors of uncertainty. To address the human factors, a second part to the programme was organised whereby welds with seeded flaws were provided to volunteers from several labs. Their task was to scan the welds using an acquisition format compatible with a TFM algorithm and analyse the data using the TFM algorithm of their choice. Height, length and smallest ligament was to be reported. This report summarises the statistical findings of Part 2 of the programme. https://www.ndt.net/search/docs.php3?id=30605
spellingShingle Mariana Burrowes M. Guimarães
Edward Ginzel
Gabriela Ribeiro Pereira
Cesar Giron Camerini
Cesar Giron Camerini
Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)
e-Journal of Nondestructive Testing
title Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)
title_full Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)
title_fullStr Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)
title_full_unstemmed Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)
title_short Evaluating Human Factors in TFM Sizing Accuracy: Statistical Findings from a Round-Robin Programme (Part 2)
title_sort evaluating human factors in tfm sizing accuracy statistical findings from a round robin programme part 2
url https://www.ndt.net/search/docs.php3?id=30605
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