Evaluation of uncertainty in the measurement of the stress-optic coefficient

In this study, a method for evaluating the uncertainty of stress-optic coefficient measurements of photoelastic materials on a uniaxial tension/compression specimen is presented. The same problem is also approached in other previously used methods, in which multiple data fitted with ordinary least s...

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Autor: Solaguren-Beascoa Fernández, Manuel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Burgos (UBU)
Repositorio:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/9259
Acceso en línea:http://hdl.handle.net/10259/9259
Access Level:acceso abierto
Palabra clave:Stress-optic coefficient
Photoelasticity
Uncertainty
Measurement
Metrology
Ingeniería mecánica
Resistencia de materiales
Mechanical engineering
Strength of materials
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spelling Evaluation of uncertainty in the measurement of the stress-optic coefficientSolaguren-Beascoa Fernández, ManuelStress-optic coefficientPhotoelasticityUncertaintyMeasurementMetrologyIngeniería mecánicaResistencia de materialesMechanical engineeringStrength of materialsIn this study, a method for evaluating the uncertainty of stress-optic coefficient measurements of photoelastic materials on a uniaxial tension/compression specimen is presented. The same problem is also approached in other previously used methods, in which multiple data fitted with ordinary least squares are considered. However, only the repeatability contribution to uncertainty is considered in those other methods, which are therefore not consistent with the ISO–Guide to the expression of Uncertainty in Measurement. All possible contributions to uncertainty can be taken into account using the General Least Squares-Lagrange Multipliers (GLS-LM) method presented here. The application of the method is illustrated with an example, from which it can be seen that uncertainty has been underestimated in the other methods used to date. As well as the estimate of the stress-optic coefficient and its corresponding standard uncertainty, the method also provides a data consistency test and an outlier identification tool.Elsevier202420242023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10259/9259reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)instname:Universidad de Burgos (UBU)InglésJournal of Non-Crystalline Solids. 2023, V. 607, 122249https://doi.org/10.1016/j.jnoncrysol.2023.122249Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riubu.ubu.es:10259/92592026-05-28T07:56:11Z
dc.title.none.fl_str_mv Evaluation of uncertainty in the measurement of the stress-optic coefficient
title Evaluation of uncertainty in the measurement of the stress-optic coefficient
spellingShingle Evaluation of uncertainty in the measurement of the stress-optic coefficient
Solaguren-Beascoa Fernández, Manuel
Stress-optic coefficient
Photoelasticity
Uncertainty
Measurement
Metrology
Ingeniería mecánica
Resistencia de materiales
Mechanical engineering
Strength of materials
title_short Evaluation of uncertainty in the measurement of the stress-optic coefficient
title_full Evaluation of uncertainty in the measurement of the stress-optic coefficient
title_fullStr Evaluation of uncertainty in the measurement of the stress-optic coefficient
title_full_unstemmed Evaluation of uncertainty in the measurement of the stress-optic coefficient
title_sort Evaluation of uncertainty in the measurement of the stress-optic coefficient
dc.creator.none.fl_str_mv Solaguren-Beascoa Fernández, Manuel
author Solaguren-Beascoa Fernández, Manuel
author_facet Solaguren-Beascoa Fernández, Manuel
author_role author
dc.subject.none.fl_str_mv Stress-optic coefficient
Photoelasticity
Uncertainty
Measurement
Metrology
Ingeniería mecánica
Resistencia de materiales
Mechanical engineering
Strength of materials
topic Stress-optic coefficient
Photoelasticity
Uncertainty
Measurement
Metrology
Ingeniería mecánica
Resistencia de materiales
Mechanical engineering
Strength of materials
description In this study, a method for evaluating the uncertainty of stress-optic coefficient measurements of photoelastic materials on a uniaxial tension/compression specimen is presented. The same problem is also approached in other previously used methods, in which multiple data fitted with ordinary least squares are considered. However, only the repeatability contribution to uncertainty is considered in those other methods, which are therefore not consistent with the ISO–Guide to the expression of Uncertainty in Measurement. All possible contributions to uncertainty can be taken into account using the General Least Squares-Lagrange Multipliers (GLS-LM) method presented here. The application of the method is illustrated with an example, from which it can be seen that uncertainty has been underestimated in the other methods used to date. As well as the estimate of the stress-optic coefficient and its corresponding standard uncertainty, the method also provides a data consistency test and an outlier identification tool.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10259/9259
url http://hdl.handle.net/10259/9259
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of Non-Crystalline Solids. 2023, V. 607, 122249
https://doi.org/10.1016/j.jnoncrysol.2023.122249
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)
instname:Universidad de Burgos (UBU)
instname_str Universidad de Burgos (UBU)
reponame_str Repositorio Institucional de la Universidad de Burgos (RIUBU)
collection Repositorio Institucional de la Universidad de Burgos (RIUBU)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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