Hybrid Model for Discrete Cracks in Concrete
Publication: Journal of Engineering Mechanics
Volume 110, Issue 8
Abstract
A method is proposed for the analysis of mode I and mixed mode crack propagation in concrete. It is based on a hybrid technique which uses finite elements to represent the uncracked specimen, and distributed dislocations to represent the crack. Consequently, no remeshing of the finite elements is required after crack propagation. This method is improved and further developed to make it applicable to concrete by incorporating the nonlinear traction transfer characteristics in a crack in concrete. By incorporating expressions obtained from previous studies to represent the aggregate interlock and imperfect debonding (i.e., tensile softening) in the crack, the major sources of nonlinearity caused by cracking are accounted for. Crack propagation in a single edge notched beam, subjected to four point bending, is modeled correctly, while the predicted reduction in load corresponds satisfactorily with the experimentally obtained results.
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Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 110 • Issue 8 • August 1984
Pages: 1211 - 1229
Copyright
Copyright © 1984 ASCE.
History
Published online: Aug 1, 1984
Published in print: Aug 1984
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