Testing of Cementitious Materials under High-Strain-Rate Tensile Loading Using Elastic Strain Energy
Publication: Journal of Engineering Mechanics
Volume 137, Issue 4
Abstract
This paper describes a new test system that relies on sudden strain energy release to subject cementitious composite specimens to high-strain-rate tensile loading. The proposed system is (1) more cost effective to build and smaller than existing systems; (2) can be used to test larger specimens, which is an important advantage for cementitious materials; and (3) can be conveniently adjusted to achieve a broad range of strain rates. The theoretical potential of the device is discussed and equations that describe the operation of the system are developed and used to identify influential variables. A computational simulation model of a prototype system is presented and exercised to quantitatively explore the influence of key variables on the accuracy of measured results. The new system has the potential for conducting accurate high-strain-rate testing of cement-based materials in direct tension.
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Acknowledgments
The research described herein was sponsored by the National Science Foundation under Grant No. NSFCMS 0754505 and the University of Michigan. The first writer acknowledges the financial support from Basic Science Research Program through the National Research Foundation of Korea (NRF) by the Ministry of Education, Science and Technology (UNSPECIFIED2010-0003161). The second writer acknowledges the financial support by a fellowship within the Postdoc-Programme of the German Academic Exchange Service (DAAD). The writers are grateful to the sponsors for their financial support. The opinions expressed in this paper are those of the writers and do not necessarily reflect the views of the sponsors.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 137 • Issue 4 • April 2011
Pages: 268 - 275
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Mar 6, 2009
Accepted: Oct 12, 2010
Published online: Oct 14, 2010
Published in print: Apr 1, 2011
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