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dc.contributor.authorDong, W-
dc.contributor.authorZhou, X-
dc.contributor.authorWu, Z-
dc.contributor.authorLuo, H-
dc.contributor.authorKastiukas, G-
dc.identifier.citationComputers and Structures, 2017en_US
dc.description.abstractA novel elliptical ring test method has been proposed to replace the traditional circular ring test method for the purpose of shortening test duration for assessing cracking tendency of concrete and more conveniently examining crack evolution in concrete rings. To further explore the mechanism of this new test method, a numerical model was established to analyse stress development and crack initiation in concrete rings in which a fictitious temperature field simulated the externally applied mechanical effects of concrete shrinkage on concrete causing the same strain as shrinkage does. The proposed numerical model was validated against experimental results and was then used to evaluate the effects of ring geometry on the degree of restraint to concrete. Moreover, a series of numerical experiments were conducted to derive the expression of the degree of restraint to elliptical rings. Through the error analysis of the degree of restraint on concrete properties and ring geometry, the expression was verified so that it can be used to calculate the degree of restraint provided by the internal steel ring. According to the derived expression, the restrained elliptical ring test can be designed to quantitatively simulate the service condition of concrete in an engineering structure more accurately.en_US
dc.description.sponsorshipThe financial support of the National Natural Science Foundation of China under the grants of NSFC 51478083 and NSFC 51421064, the UK Engineering and Physical Sciences Research Council under the grant of EP/I031952/1, the Fundamental Research Funds for the Central Universities of China under the grants of DUT17LK06, and the Natural Science Foundation of Liaoning Province of China under the grant of 20170540183 is gratefully acknowledged.en_US
dc.subjectring testen_US
dc.subjectrestraint shrinkageen_US
dc.subjectelliptical ringen_US
dc.subjectdegree of restrainten_US
dc.subjectnumerical simulation.en_US
dc.titleQuantifying the influence of elliptical ring geometry on the degree of restraint in a ring testen_US
dc.relation.isPartOfComputers and Structures-
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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