Numerical modelling of the fracture process in reinforced concrete by means of a continuum strong discontinuity approach. Part II: application to shear panels
Simulación numérica del proceso de fractura en concreto reforzado mediante la metodología de discontinuidades fuertes de continuo. Parte II: Aplicación a páneles sometidos a cortante
DOI:
https://doi.org/10.15446/ing.investig.v30n3.18175Keywords:
Computational mechanics, fracture mechanics, strong discontinuity, mixing theory, reinforced concrete, finite elements, Shear panels (en)mecánica computacional, mecánica de la fractura, discontinuidades fuertes, teoría de mezclas, concreto reforzado, elementos finitos, páneles sometidos a cortante (es)
Downloads
The numerical simulation results of the fracture process in reinforced concrete shear panels are presented in this work. The simulation used a model based on the continuum strong discontinuity approach (CSDA) and mixing theory. CSDA describes strain localization and formation of discontinuity associated with the appearance of a crack. On the other hand, mixing theory represents composite material behaviour which is formed by a simple concrete matrix and one or two bundles of long reinforcement bars. The behaviour of simple concrete and steel is represented by a two dimensional damage model and one-dimensional plasticity model, respectively. The model has been implemented in the finite element method which considers plane stress, infinitesimal strain and static loads. Three panels are simulated, reinforced in one or two ways; they are mainly subjected to shear forces. The numerical simulation results as well as structural response and cracking patterns were satisfactory.
En este trabajo se presentan los resultados de la simulación numérica del proceso de fractura en páneles de concreto reforzado sometidos a cortante, utilizando un modelo basado en la metodología de discontinuidades fuertes de continuo (CSDA) y la teoría de mezclas. La CSDA describe la localización de la deformación y la formación de una discontinuidad asociada con la aparición de una fisura. En cambio, la teoría de mezclas representa el comportamiento de un material compuesto, constituido por una matriz de concreto simple y uno o dos paquetes de barras largas de acero de refuerzo. El comportamiento del concreto simple y el acero se representan mediante un modelo de daño bidimensional y un modelo de plasticidad unidimensional, respectivamente. El modelo se implementa en el método de los elementos finitos considerando estado plano de esfuerzos, deformaciones infinitesimales y cargas estáticas. Se simularon tres páneles reforzados en una o en dos direcciones, los cuales estaban y sometidos principalmente a fuerzas cortantes. Los resultados de la simulación numérica, como la respuesta estructural y el patrón de fisuración, fueron satisfactorios.
Downloads
References
Bhide, S., Collins, P., Influence of axial tension on the shear capacity of reinforced concrete members., ACI Structural Journal, Vol. 86, No. 5, 1989, pp. 570 -581.
Cervera, M., Agelet, C., Chiumenti, M., COMET. Contact Mechanical and Thermal analysis., Multipurpose coupled nonlinear program for steady and transient conditions, version 5.0. Data input manual. Barcelona, CIMNE, 2002.
Collins, M., Vecchio, F., Mehlhorn, G., An International competition to predict the response of reinforced concrete panels., Canadian Journal of Civil Engineering, Vol. 12, 1985, pp. 624-644.
De Souza, E. A., Peric, D., Owen, D. R. J., Computational methods for plasticity., Theory and Applications, Wiley, 2008.
Linero, D. L., Oliver, X., Huespe, A. E., A model of material failure for reinforced concrete via continuum strong discontinuity approach and mixing theory., Barcelona, International Center for Numerical Methods in Engineering, 2007.
Linero, D. L., Oliver, X., Huespe, A. E., Simulación numérica del proceso de fractura en concreto reforzado mediante la metodología de discontinuidades fuertes de continuo., Parte I: formulación. Revista Ingeniería e Investigación, Vol. 30, No. 2, 2010.
Nawy, E., Reinforced concrete: A fundamental approach., Prentice Hall, 2008.
Oliver, J., Huespe, A., Continuum approach to material failure in strong discontinuity settings., Computer Methods in Applied Mechanics and Engineering, Vol. 193, 2004a, pp. 3195 - 3220.
Oliver, J., Huespe, A., Theoretical and computational issues in modelling material failure in strong discontinuity scenarios., Computer Methods in Applied Mechanics and Engineering, Vol. 193, 2004b, pp. 2987-3014.
Oliver, J., Huespe, A. E., Blanco, S., Linero, D. L., Stability and robustness issues in numerical modeling of material failure in the strong discontinuity approach., Computer Methods in Applied Mechanics and Engineering, Vol. 195, No. 52, 2006, pp. 7093-7114.
Oller, S., Simulación numérica del comportamiento mecánico de los materiales compuestos., Barcelona, CIMNE, 2003.
Ouyang, C., Wollrab, E., Kulkarni, S., Shah, P., Prediction of cracking response of reinforced concrete tensile members., Journal of Structural Engineering, ASCE, Vol. 123, No. 1, 1997, pp. 70 - 78.
Wight, J., MacGregor, J., Reinforced Concrete: Mechanics and Design., Prentice Hall, 2008.
License
Copyright (c) 2010 Dorian Luís Linero Segrera, Javier Oliver, Alfredo E. Huespe

This work is licensed under a Creative Commons Attribution 4.0 International License.
The authors or holders of the copyright for each article hereby confer exclusive, limited and free authorization on the Universidad Nacional de Colombia's journal Ingeniería e Investigación concerning the aforementioned article which, once it has been evaluated and approved, will be submitted for publication, in line with the following items:
1. The version which has been corrected according to the evaluators' suggestions will be remitted and it will be made clear whether the aforementioned article is an unedited document regarding which the rights to be authorized are held and total responsibility will be assumed by the authors for the content of the work being submitted to Ingeniería e Investigación, the Universidad Nacional de Colombia and third-parties;
2. The authorization conferred on the journal will come into force from the date on which it is included in the respective volume and issue of Ingeniería e Investigación in the Open Journal Systems and on the journal's main page (https://revistas.unal.edu.co/index.php/ingeinv), as well as in different databases and indices in which the publication is indexed;
3. The authors authorize the Universidad Nacional de Colombia's journal Ingeniería e Investigación to publish the document in whatever required format (printed, digital, electronic or whatsoever known or yet to be discovered form) and authorize Ingeniería e Investigación to include the work in any indices and/or search engines deemed necessary for promoting its diffusion;
4. The authors accept that such authorization is given free of charge and they, therefore, waive any right to receive remuneration from the publication, distribution, public communication and any use whatsoever referred to in the terms of this authorization.










