Modified Microplane Model for Reinforced Concrete under Static and Dynamic Loadings
Publication: Journal of Engineering Mechanics
Volume 137, Issue 10
Abstract
A smeared dynamic constitutive model is proposed for reinforced concrete based on microplane Model M4, in which the modified Menegotto-Pinto model for steel was adopted and the strain rate effect was taken into account by introducing parallel moving of envelope line. The model was established based on the hypothesis that the strains of concrete and steel bars have parallel coupling. Then the contribution of steel to total stress tensor was derived by projecting the section area of steel bars to three orthogonal directions. This model was calibrated by fitting with the test data, and its validity was verified by simulating a bridge-ship collision application using LS-DYNA embedded with a user-defined material subroutine.
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Acknowledgments
This paper is supported by NSFC, No. NSFC90715022 and supported by the Chinese high-tech R & D Program (863 Program, No. UNSPECIFIED2006AA11Z120).
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 137 • Issue 10 • October 2011
Pages: 635 - 647
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Apr 23, 2009
Accepted: Mar 24, 2011
Published online: Sep 15, 2011
Published in print: Oct 1, 2011
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