Paper Titles
Maintenance Scheduling in Risk Assessment Procedures
p.559
Numerical Study on Elastic-Plastic Stress Field Near the Cooling Holes of Nickel-Based Single Crystal Air-Cooled Blades
p.563
Failure Process of Rock Sample Observed by AE Source Locating Technique under Uniaxial Compression
p.567
A Short Fatigue Crack Growth Law for 1Cr18Ni9Ti Weld Metal
p.571
3D Anisotropic Elastoplastic-Damage Model and its Application in Simulating the Behavior of Rock Materials
p.579
A Constitutive Damage Model for Dynamic Response of Dry/Water-Saturated Granite with Application to Study on Stress Waves
p.583
Fracture Parameters and Post-Peak Behavior Evaluation under LEFM on Bonded Cement-Based Materials
p.587
Flexural Failure Analysis of Concrete Beams Reinforced with Newly Developed Deformed GFRP Bars
p.591
Oxidation Damage of APS Thermal Barrier Coatings under High Temperature
p.595

3D Anisotropic Elastoplastic-Damage Model and its Application in Simulating the Behavior of Rock Materials

Article Preview

Abstract:

A 3D anisotropic elastoplastic-damage model was presented based on continuum damage mechanics theory. In this model, the tensor decomposition technique is employed. Combined with the plastic yield rule and damage evolution, the stress tensor in incremental format is obtained. The derivate eigenmodes in the proposed model are assumed to be related with the uniaxial behavior of the rock material. Each eigenmode has a corresponding damage variable due to the fact that damage is a function of the magnitude of the eigenstrain. Within an eigenmodes, different damage evolution can be used for tensile and compressive loadings. This model was also developed into finite element code in explicit format, and the code was integrated into the well-known computational environment ABAQUS using the ABAQUS/Explicit Solver. Numerical simulation of an uniaxial compressive test for a rock sample is used to examine the performance of the proposed model, and the progressive failure process of the rock sample is unveiled.

You might also be interested in these eBooks
Fracture and Damage Mechanics V View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 324-325)

Pages:

579-582

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.324-325.579

Citation:

Cite this paper

Online since:

November 2006

Authors:

Jun Feng Zhang, Tao Qi

Keywords:

Anisotropy, Elasto-Plastic-Damage, Rock Material, Tensor Decomposition

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] T. Kawamoto, et al. Int. J. Numer. Anal. Methods Geomech. Vol. 12 (1988), p.1.

Google Scholar

[2] W.H. Zhang, S. Valliappan: Rock Mech. Rock Engng Vol. 23 (1990), p.241.

Google Scholar

[3] A. Dragon, et al. Comput. Methods Appl. Mech. Engrg. Vol. 183 (2000), p.331.

Google Scholar

[4] J. Mosler, O. T. Bruhns: Int. J. Numer. Meth. Engng Vol. 60 (2004), p.923.

Google Scholar

[5] J.L. Chaboche: J. Appl. Mech. Vol. 55 (1988), p.59.

Google Scholar

[6] Y. Zhu, S. Cescotto: Int. J. Solids Struct. Vol. 32 (1995), p.1607.

Google Scholar

[7] M.R. Salari, S. Saeb, K.J. Willam, S.J. Patchet, and R.C. Carrasco: Comput. Methods Appl. Mech. Engrg. Vol. 193 (2004), p.2625.

Google Scholar