Anisotropic damage of rock joints during cyclic loading: constitutive framework and numerical integration
Article first published online: 21 DEC 2013
Copyright © 2013 John Wiley & Sons, Ltd.
International Journal for Numerical and Analytical Methods in Geomechanics
Volume 38, Issue 10, pages 1036–1057, July 2014
How to Cite
White, J. A. (2014), Anisotropic damage of rock joints during cyclic loading: constitutive framework and numerical integration. Int. J. Numer. Anal. Meth. Geomech., 38: 1036–1057. doi: 10.1002/nag.2247
- Issue published online: 13 JUN 2014
- Article first published online: 21 DEC 2013
- Manuscript Accepted: 24 OCT 2013
- Manuscript Revised: 5 AUG 2013
- Manuscript Received: 12 MAR 2013
- implicit integration
This work describes a constitutive framework for modeling the behavior of rough joints under cyclic loading. Particular attention is paid to the intrinsic links between dilatancy, surface degradation, and mobilized shear strength. The framework also accounts for the important effect of shear-induced anisotropy. The resulting approach is fully three-dimensional and is not restricted to plane-displacement kinematics. Both the governing formulation and an algorithm for implicit numerical integration are presented. While the proposed methods are general, we also postulate a specific model that is compared with experimental data. It employs relatively few free parameters but shows good agreement with laboratory tests. Copyright © 2013 John Wiley & Sons, Ltd.