Continuum approach to the numerical simulation of material failure in concrete | Zendy

Oliver J. | Zendy; Huespe A. E. | Zendy; Samaniego E. | Zendy; Chaves E. W. V. | Zendy

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Continuum approach to the numerical simulation of material failure in concrete

Author(s) -

Oliver J.,

Huespe A. E.,

Samaniego E.,

Chaves E. W. V.

Publication year - 2004

Publication title -

international journal for numerical and analytical methods in geomechanics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.419

H-Index - 91

eISSN - 1096-9853

pISSN - 0363-9061

DOI - 10.1002/nag.365

Subject(s) - uniqueness , discontinuity (linguistics) , simple (philosophy) , classification of discontinuities , perturbation (astronomy) , computer simulation , structural engineering , computer science , mechanics , mathematics , engineering , mathematical analysis , physics , epistemology , philosophy , quantum mechanics

Some new aspects of the continuum strong discontinuity approach (CSDA) to model material failure in geomaterials are addressed. A new global algorithm, for tracking multiple crack lines/surfaces in 2D/3D cases is proposed. It is based on solving a simple heat conduction‐like problem accompanying the standard mechanical algorithm. A viscous perturbation method on the crack surface is also proposed to remedy the instabilities caused by mutual interactions of multiple developing cracks. A simple procedure to compute the critical time step that ensures algorithmic uniqueness is then provided. Numerical simulations of two‐ and three‐dimensional problems displaying a multi‐crack pattern are finally presented. Copyright © 2004 John Wiley & Sons, Ltd.

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