Three-Dimensional Damage Model for Concrete. I: Theory
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Volume 134, Issue 1
Abstract
A damage model for concrete is proposed based on the existing displacement equivalence-based model for brittle materials. The model is established in a randomly selected coordinate system so as to consider the cases where the principal directions of damage do not coincide with those of stress and strain. The effect of shear stress is also considered. The slipping cracks of concrete under triaxial compression and the stiffness reduction under hydrostatic compression are also taken into account. The friction at crack tips has been introduced to account for the permanent deformation and a blend of elastic and secant unloading/reloading routine is obtained. The evolution rule of damage is combined with the predefined basic damage evolution patterns.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 134 • Issue 1 • January 2008
Pages: 72 - 81
Copyright
© 2008 ASCE.
History
Received: May 16, 2006
Accepted: Jun 21, 2007
Published online: Jan 1, 2008
Published in print: Jan 2008
Notes
Note. Associate Editor: Christian Hellmich
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