File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Conference Paper: Study on fracture behaviors of concrete using electronic speckle pattern interferometry and finite element method

TitleStudy on fracture behaviors of concrete using electronic speckle pattern interferometry and finite element method
Authors
KeywordsFracture behaviors
Concrete
ESPI
Rigid-body motion
ATENA software
Issue Date2010
PublisherTech Science Press. The Journal's web site is located at http://www.techscience.com/icces/index.html
Citation
International Conference on Computational & Experimental Engineering and Sciences (ICCES'10), Las Vegas, NV., 28 March-1 April 2010. In International Conference on Computational & Experimental Engineering and Sciences Proceedings, 2010, v. 15 n. 3, p. 91-101 How to Cite?
AbstractIn this study, Electronic Speckle Pattern Interferometry (ESPI) technique was used to measure the surface displacement and strain fields around cracks in concrete beams. ESPI has high accuracy and can determine full-field deformations of concrete. However, tiny rigid-body movements of beam specimens can spoil the ESPI measurement and cause virtual deformations and false strains. Based on the theory of geometrical optics, this paper proposes a method to eliminate the false strains caused by rigid-body motion. The correction procedure was validated experimentally. Furthermore, the crack evolution in a pre-notched beam is presented. The critical minimum crack width of a microcrack is found to be about 0.1µm and the minimum crack width of an open crack is about 2 µm. Finally, a finite element analysis of a notched beam was conducted. The numerical and experimental results reveal that the critical crack tip opening of a notched beam is around 30-35 µm.
Persistent Identifierhttp://hdl.handle.net/10722/133779
ISSN

 

DC FieldValueLanguage
dc.contributor.authorChen, HH-
dc.contributor.authorSu, RKL-
dc.date.accessioned2011-05-25T04:26:28Z-
dc.date.available2011-05-25T04:26:28Z-
dc.date.issued2010-
dc.identifier.citationInternational Conference on Computational & Experimental Engineering and Sciences (ICCES'10), Las Vegas, NV., 28 March-1 April 2010. In International Conference on Computational & Experimental Engineering and Sciences Proceedings, 2010, v. 15 n. 3, p. 91-101-
dc.identifier.issn1933-2815-
dc.identifier.urihttp://hdl.handle.net/10722/133779-
dc.description.abstractIn this study, Electronic Speckle Pattern Interferometry (ESPI) technique was used to measure the surface displacement and strain fields around cracks in concrete beams. ESPI has high accuracy and can determine full-field deformations of concrete. However, tiny rigid-body movements of beam specimens can spoil the ESPI measurement and cause virtual deformations and false strains. Based on the theory of geometrical optics, this paper proposes a method to eliminate the false strains caused by rigid-body motion. The correction procedure was validated experimentally. Furthermore, the crack evolution in a pre-notched beam is presented. The critical minimum crack width of a microcrack is found to be about 0.1µm and the minimum crack width of an open crack is about 2 µm. Finally, a finite element analysis of a notched beam was conducted. The numerical and experimental results reveal that the critical crack tip opening of a notched beam is around 30-35 µm.-
dc.languageeng-
dc.publisherTech Science Press. The Journal's web site is located at http://www.techscience.com/icces/index.html-
dc.relation.ispartofInternational Conference on Computational & Experimental Engineering and Sciences Proceedings-
dc.subjectFracture behaviors-
dc.subjectConcrete-
dc.subjectESPI-
dc.subjectRigid-body motion-
dc.subjectATENA software-
dc.titleStudy on fracture behaviors of concrete using electronic speckle pattern interferometry and finite element methoden_US
dc.typeConference_Paperen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1933-2815&volume=15&issue=3&spage=91&epage=101&date=2010&atitle=Study+on+fracture+behaviors+of+concrete+using+electronic+speckle+pattern+interferometry+and+finite+element+method-
dc.identifier.emailChen, HH: hongniao@HKUSUC.hku.hk-
dc.identifier.emailSu, RKL: klsu@hkucc.hku.hk-
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.3970/icces.2010.015.091-
dc.identifier.hkuros171150-
dc.identifier.volume15-
dc.identifier.issue3-
dc.identifier.spage91-
dc.identifier.epage101-
dc.description.otherInternational Conference on Computational & Experimental Engineering and Sciences (ICCES'10), Las Vegas, NV., 28 March-1 April 2010. In International Conference on Computational & Experimental Engineering and Sciences Proceedings, 2010, v. 15 n. 3, p. 91-101-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats