Modeling of concrete cracking-A hybrid technique of using displacement discontinuity element method and direct boundary element method

Ameen, Mohammed and Prasad, Raghu BK and Gopalakrishnan, AR (2011) Modeling of concrete cracking-A hybrid technique of using displacement discontinuity element method and direct boundary element method. In: Engineering Analysis with Boundary Elements, 35 (9). pp. 1054-1059.

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Abstract

This paper presents a new approach by making use of a hybrid method of using the displacement discontinuity element method and direct boundary element method to model concrete cracking by incorporating fictitious crack model. Fracture mechanics approach is followed using the Hillerborg's fictitious crack model. A boundary element based substructure method and a hybrid technique of using displacement discontinuity element method and direct boundary element method are compared in this paper. In order to represent the process zone ahead of the crack, closing forces are assumed to act in such a way that they obey a linear normal stress-crack opening displacement law. Plain concrete beams with and without initial crack under three-point loading were analyzed by both the methods. The numerical results obtained were shown to agree well with the results from existing finite element method. The model is capable of reproducing the whole range of load-deflection response including strain-softening and snap-back behavior as illustrated in the numerical examples. (C) 2011 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Engineering Analysis with Boundary Elements
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	18 Jul 2011 08:56
Last Modified:	18 Jul 2011 08:56
URI:	http://eprints.iisc.ac.in/id/eprint/39185

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