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dc.contributor.authorArza García, Marcos
dc.contributor.authorNúñez Temes, Carlos
dc.contributor.authorLorenzana Fernández, Jose Antonio
dc.contributor.authorOrtiz Sanz, Juan Pedro
dc.contributor.authorCastro Ponte, Alberte
dc.contributor.authorPortela Barral, Maria
dc.contributor.authorGil Docampo, María de la Luz
dc.contributor.authorBastos Costas, Guillermo
dc.date.accessioned2022-06-30T10:14:36Z
dc.date.available2022-06-30T10:14:36Z
dc.date.issued2022
dc.identifier.citationArchives of Civil and Mechanical Engineering 22, 4 (2022). https://doi.org/10.1007/s43452-021-00325-0
dc.identifier.urihttp://hdl.handle.net/10347/28864
dc.description.abstractDue to their cost, high-end commercial 3D-DIC (digital image correlation) systems are still inaccessible for many laboratories or small factories interested in lab testing materials. These professional systems can provide reliable and rapid full-field measurements that are essential in some laboratory tests with high-strain rate events or high dynamic loading. However, in many stress-controlled experiments, such as the Brazilian tensile strength (BTS) test of compacted soils, samples are usually large and fail within a timeframe of several minutes. In those cases, alternative low-cost methods could be successfully used instead of commercial systems. This paper proposes a methodology to apply 2D-DIC techniques using consumer-grade cameras and the open-source image processing software DICe (Sandia National Lab) for monitoring the standardized BTS test. Unlike most previous studies that theoretically estimate systematic errors or use local measures from strain gauges for accuracy assessment, we propose a contrast methodology with independent full-field measures. The displacement fields obtained with the low-cost system are benchmarked with the professional stereo-DIC system Aramis-3D (GOM GmbH) in four BTS experiments using compacted soil specimens. Both approaches proved to be valid tools for obtaining full-field measurements and showing the sequence of crack initiation, propagation and termination in the BTS, constituting reliable alternatives to traditional strain gauges. Mean deviations obtained between the low-cost 2D-DIC approach and Aramis-3D in measuring in-plane components were 0.08 mm in the perpendicular direction of loading (ΔX) and 0.06 mm in the loading direction (ΔY). The proposed low-cost approach implies considerable savings compared to commercial systems
dc.description.sponsorshipOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was supported by the Strategic Researcher Cluster BioReDeS funded by the Regional Government Xunta de Galicia under the project Ref. ED431E 2018/09, by the Xunta de Galicia under the grant “Financial aid for the consolidation and structure of competitive units of investigation in the universities of the University Galician System (2020-22)” Ref. ED341B 2020/25 and by the Spanish Research Agency (AEI) in the frame of the programme Juan de la Cierva–Formación (Dr. Bastos) Ref. FJC2019-039743-I/AEI/10.13039/501100011033
dc.language.isoeng
dc.publisherSpringer
dc.rights© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDIC
dc.subjectBrazilian tensile strength
dc.subjectStereo vision
dc.subjectGOM
dc.subjectCamera calibration
dc.subjectFull-feld measurements
dc.titleEvaluation of a low-cost approach to 2-D digital image correlation vs. a commercial stereo-DIC system in Brazilian testing of soil specimens
dc.typeinfo:eu-repo/semantics/article
dc.identifier.DOI10.1007/s43452-021-00325-0
dc.relation.publisherversionhttps://doi.org/10.1007/s43452-021-00325-0
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.e-issn1644-9665
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Enxeñaría Agroforestal
dc.description.peerreviewedSI


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© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
Except where otherwise noted, this item's license is described as  © The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/





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