Squeeze Flow of Viscoplastic Cement-Based Extrudate
Publication: Journal of Engineering Mechanics
Volume 133, Issue 9
Abstract
In this study, squeeze flow of viscoplastic cement-based extrudate has been investigated and a solution for the squeeze force as a function of the squeezing speed and other material parameters derived. The viscoplastic strain rates are obtained from the associated flow rule, which relates the strain rate to deviatoric stress through the coaxiality relation. For simplicity, the elastic response is neglected. The parameter study has shown that the upsetting process of cement-based extrudate can be predicted by the solution. The computed results have been used to compare with results of experiments conducted upon viscoplastic paste material. A reasonable agreement is observed.
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Acknowledgments
Support from Hong Kong RGC under Grant No. 616706 and from NSFC under Grant No. NSFC50578142 is greatly acknowledged.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 133 • Issue 9 • September 2007
Pages: 1003 - 1008
Copyright
© 2007 ASCE.
History
Received: Dec 7, 2005
Accepted: Mar 6, 2007
Published online: Sep 1, 2007
Published in print: Sep 2007
Notes
Note. Associate Editor: George Z. Voyiadjis
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