Accurate kinematic measurement at interfaces between dissimilar materials using conforming finite-element-based digital image correlation

Handle URI:
http://hdl.handle.net/10754/621528
Title:
Accurate kinematic measurement at interfaces between dissimilar materials using conforming finite-element-based digital image correlation
Authors:
Tao, Ran ( 0000-0001-5920-3185 ) ; Moussawi, Ali ( 0000-0002-5978-7990 ) ; Lubineau, Gilles ( 0000-0002-7370-6093 ) ; Pan, Bing
Abstract:
Digital image correlation (DIC) is now an extensively applied full-field measurement technique with subpixel accuracy. A systematic drawback of this technique, however, is the smoothening of the kinematic field (e.g., displacement and strains) across interfaces between dissimilar materials, where the deformation gradient is known to be large. This can become an issue when a high level of accuracy is needed, for example, in the interfacial region of composites or joints. In this work, we described the application of global conforming finite-element-based DIC technique to obtain precise kinematic fields at interfaces between dissimilar materials. Speckle images from both numerical and actual experiments processed by the described global DIC technique better captured sharp strain gradient at the interface than local subset-based DIC. © 2016 Elsevier Ltd. All rights reserved.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Tao R, Moussawi A, Lubineau G, Pan B (2016) Accurate kinematic measurement at interfaces between dissimilar materials using conforming finite-element-based digital image correlation. Optics and Lasers in Engineering 81: 103–112. Available: http://dx.doi.org/10.1016/j.optlaseng.2016.01.012.
Publisher:
Elsevier BV
Journal:
Optics and Lasers in Engineering
Issue Date:
11-Feb-2016
DOI:
10.1016/j.optlaseng.2016.01.012
Type:
Article
ISSN:
0143-8166
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTao, Ranen
dc.contributor.authorMoussawi, Alien
dc.contributor.authorLubineau, Gillesen
dc.contributor.authorPan, Bingen
dc.date.accessioned2016-11-03T08:31:28Z-
dc.date.available2016-11-03T08:31:28Z-
dc.date.issued2016-02-11en
dc.identifier.citationTao R, Moussawi A, Lubineau G, Pan B (2016) Accurate kinematic measurement at interfaces between dissimilar materials using conforming finite-element-based digital image correlation. Optics and Lasers in Engineering 81: 103–112. Available: http://dx.doi.org/10.1016/j.optlaseng.2016.01.012.en
dc.identifier.issn0143-8166en
dc.identifier.doi10.1016/j.optlaseng.2016.01.012en
dc.identifier.urihttp://hdl.handle.net/10754/621528-
dc.description.abstractDigital image correlation (DIC) is now an extensively applied full-field measurement technique with subpixel accuracy. A systematic drawback of this technique, however, is the smoothening of the kinematic field (e.g., displacement and strains) across interfaces between dissimilar materials, where the deformation gradient is known to be large. This can become an issue when a high level of accuracy is needed, for example, in the interfacial region of composites or joints. In this work, we described the application of global conforming finite-element-based DIC technique to obtain precise kinematic fields at interfaces between dissimilar materials. Speckle images from both numerical and actual experiments processed by the described global DIC technique better captured sharp strain gradient at the interface than local subset-based DIC. © 2016 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectConformal meshen
dc.subjectDigital image correlationen
dc.subjectDissimilar material interfaceen
dc.subjectGlobal DICen
dc.titleAccurate kinematic measurement at interfaces between dissimilar materials using conforming finite-element-based digital image correlationen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalOptics and Lasers in Engineeringen
dc.contributor.institutionInstitute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, Chinaen
kaust.authorTao, Ranen
kaust.authorMoussawi, Alien
kaust.authorLubineau, Gillesen
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