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Conference Paper: Experimental study on fracture behavior of pre-notched mortar beams using ESPI technique

TitleExperimental study on fracture behavior of pre-notched mortar beams using ESPI technique
Authors
KeywordsFracture behavior
Mortar beam
ESPI technique
Three-point bending
Issue Date2011
PublisherWSEAS.
Citation
Joint Conference of the 6th IASME/WSEAS International Conference on Continuum Mechanics (CM '11), 6th IASME/WSEAS International Conference on Water Resources, Hydraulics & Hydrology (WHH '11) and the 6th IASME/WSEAS International Conference on Geology and Seismology (GES '11), Cambridge, UK., 23-25 February 2011. In Recent Researches in Hydrology, Geology and Continuum Mechanics, 2011, p. 32-37 How to Cite?
AbstractElectronic Speckle Pattern Interferometry (ESPI) technique is of high sensitivity and can provide full-field surface deformation. This paper introduces the application of ESPI technique to measure the surface deformation of pre-notched mortar beams in three-point bending tests. In addition to ESPI, Linear Variable Differential Transformers (LVDTs) and clip gauge extensometer were used to measure the mid-span deflection and Crack Mouth Opening Displacement (CMOD) of the beam respectively. Displacements measured by ESPI are compared with that obtained from LVDTs and clip gauge to verify the accuracy of ESPI. From the displacement field measured by ESPI, one of the nonlinear fracture properties of quasi-brittle materials, Crack Tip Opening Displacement (CTOD) was determined and load-CTOD curve is plotted. Furthermore, crack propagation process and Crack Opening Displacement (COD) profiles at different loading stages are presented. Some fracture parameters of the mortar specimen are quantified.
Persistent Identifierhttp://hdl.handle.net/10722/133410
ISBN
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Hen_HK
dc.contributor.authorSu, RKLen_HK
dc.date.accessioned2011-05-11T08:35:27Z-
dc.date.available2011-05-11T08:35:27Z-
dc.date.issued2011en_HK
dc.identifier.citationJoint Conference of the 6th IASME/WSEAS International Conference on Continuum Mechanics (CM '11), 6th IASME/WSEAS International Conference on Water Resources, Hydraulics & Hydrology (WHH '11) and the 6th IASME/WSEAS International Conference on Geology and Seismology (GES '11), Cambridge, UK., 23-25 February 2011. In Recent Researches in Hydrology, Geology and Continuum Mechanics, 2011, p. 32-37en_HK
dc.identifier.isbn978-960-474-275-2en_US
dc.identifier.urihttp://hdl.handle.net/10722/133410-
dc.description.abstractElectronic Speckle Pattern Interferometry (ESPI) technique is of high sensitivity and can provide full-field surface deformation. This paper introduces the application of ESPI technique to measure the surface deformation of pre-notched mortar beams in three-point bending tests. In addition to ESPI, Linear Variable Differential Transformers (LVDTs) and clip gauge extensometer were used to measure the mid-span deflection and Crack Mouth Opening Displacement (CMOD) of the beam respectively. Displacements measured by ESPI are compared with that obtained from LVDTs and clip gauge to verify the accuracy of ESPI. From the displacement field measured by ESPI, one of the nonlinear fracture properties of quasi-brittle materials, Crack Tip Opening Displacement (CTOD) was determined and load-CTOD curve is plotted. Furthermore, crack propagation process and Crack Opening Displacement (COD) profiles at different loading stages are presented. Some fracture parameters of the mortar specimen are quantified.en_HK
dc.languageengen_US
dc.publisherWSEAS.en_US
dc.relation.ispartofRecent Researches in Hydrology, Geology and Continuum Mechanics: 6th IASME/WSEAS International Conference on Continuum Mechanics (CM '11) : 6th IASME/WSEAS International Conference on Water Resources, Hydraulics & Hydrology (WHH '11) : 6th IASME/WSEAS International Conference on Geology and Seismology (GES '11) ... 2011en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectFracture behavioren_HK
dc.subjectMortar beamen_HK
dc.subjectESPI techniqueen_HK
dc.subjectThree-point bendingen_HK
dc.titleExperimental study on fracture behavior of pre-notched mortar beams using ESPI techniqueen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=978-960-474-275-2&volume=&spage=32&epage=37&date=2011&atitle=Experimental+study+on+fracture+behavior+of+pre-notched+mortar+beams+using+ESPI+techniqueen_US
dc.identifier.emailSu, RKL: klsu@hkucc.hku.hken_HK
dc.identifier.authoritySu, RKL=rp00072en_HK
dc.description.naturepostprint-
dc.identifier.scopuseid_2-s2.0-79958762966en_HK
dc.identifier.hkuros184763en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79958762966&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage32en_HK
dc.identifier.epage37en_HK
dc.publisher.placeUK-
dc.identifier.scopusauthoridSu, RKL=7102627096en_HK
dc.identifier.scopusauthoridChen, HH=41861129500en_HK

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