Mesoscale Simulation of Influence of Frost Damage on Mechanical Properties of Concrete
Publication: Journal of Materials in Civil Engineering
Volume 21, Issue 6
Abstract
Mesoscale constitutive models of frost-damaged concrete are developed in this study through numerical simulation using a two-dimensional rigid body spring model (RBSM). The aim of the simulation is to predict the macrobehavior of frost-damaged concrete subjected to mechanical loading. The models also clarify the difference in failure behavior of concrete with and without frost damage. Zero strength elements and the concept of mesoscale plastic tensile strain are introduced into the normal RBSM springs to consider the experimentally observed cracking and plastic deformation caused by frost damage. The difference in the effect of frost damage on compression and tension behavior as found in the experiments is clearly predicted. Finally, analysis of a notched beam subjected to bending after different degrees of frost damage is carried out. The resulting load-deflection curves agree well with those obtained in the experiments. These good correlations confirm the applicability of the mesoscale model for predicting the macrobehavior of frost-damaged concrete.
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Acknowledgments
The writers acknowledge the financial support provided for this study by the Japan Society for the Promotion of Science (JSPS) and Grant-in-Aid for Scientific Research (A) (No. UNSPECIFIED19206048), Japan. Partial financial support under the Center for Concrete Corea, Korea to the Yonsei University of Korea is also gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 21 • Issue 6 • June 2009
Pages: 244 - 252
Copyright
© 2009 ASCE.
History
Received: Apr 5, 2007
Accepted: Jan 15, 2009
Published online: May 15, 2009
Published in print: Jun 2009
Notes
Note. Associate Editor: Kiang Hwee Tan
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