Embedded discontinuities for 3D mode-I and mode-II failure modelling
Abstract
The incorporation of displacement discontinuities in finite elements is examined. The incorporation of displacement discontinuities allows the use of discrete constitutive models in a continuum framework in order to avoid the mesh sensitivity of classical continuum models when strain softening is introduced. The procedure for building discontinuities into finite elements is examined, as well as two classes of constitutive models for mode-I and mode-II failure analysis. The performance of the model is illustrated with three-dimensional examples.
References
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[2] R. de Borst, H.B. Mühlhaus. Gradient-dependent plasticity - formulation and algorithmic aspects. International Journal for Numerical Methods in Engineering, 35(3): 521- 539, 1992.
[3] M. Fleming, YA. Chu, B. Moran, T . Belytschko. Enriched element-free Galerkin methods for crack tip fields. International Journal for Numerical Methods in Engineering, 40: 1483- 1504, 1997.
[4] M. Klisinski, K. Runesson, S. Sture. Finite element with inner softening band. ASCE Journal of Engineering Mechanics, 117(3): 575- 587, 1991.
[5] R. Larsson, K. Runesson. Element-embedded localization band based on regularized displacement discontinuity. ASCE Journal of Engineering Mechanics, 122(5): 402- 411, 1996.
Published
2023-03-30
Issue
pp. 767-780
Section
Articles
License
Copyright © The Author(s).
This work is licensed under the Creative Commons Attribution 4.0 International CC BY 4.0.
How to Cite
Wells, G. N., & Sluys, L. J. (2023). Embedded discontinuities for 3D mode-I and mode-II failure modelling. Computer Assisted Methods in Engineering and Science, 7(4), 767-780. https://cames3.ippt.pan.pl/index.php/cames/article/view/1229
