Determining the Tensile Stress-Crack Opening Curve of Concrete by Inverse Analysis
Publication: Journal of Engineering Mechanics
Volume 132, Issue 2
Abstract
The determination of the fundamental stress versus crack opening response of concrete under uniaxial tension is performed in this study through inverse analysis using data from notched beam tests. The procedure used for optimizing the parameters of the relation using the load versus crack mouth opening displacement response of the notched beam is described. Satisfactory comparisons have been obtained between the curves obtained through the inverse analysis and those directly measured in uniaxial tension tests. The use of weighting functions in the inverse analysis may be necessary when large crack widths are to be considered.
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Acknowledgments
The writers are grateful for the financial support from FAPESP-Fundação de Amparo à Pesquisa do Estado de São Paulo (Brazil), through Grant 00/10616-9, from the Spanish Ministry of Science and Technology (MCYT) Grants PB98-0298 and MAT2005-5530, and from CAPES-Fundação de Aperfeiçoamento de Pessoal de Nivel Superior, a human resources funding agency of the Brazilian Ministry of Education. The work on the SFRC analysis was part of the Commission of the European Communities Contract BRPR.CT98.0813 for the project Test and design methods for steel fibre reinforced concrete; the other partners of the project were BEKAERT (coordinator), Balfour Beatty, Belgian Building Research Institute, University of Wales-Cardiff, Catholic University of Leuven, FCC Construcción, Ruhr-University of Bochum, SIBO-Gruppe GmbH and Technical University of Braunschweig. Dr. Bryan E. Barragán is thanked for providing experimental results. Professor Henrik Stang is thanked for providing background information and the structural analysis module used in this work.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 132 • Issue 2 • February 2006
Pages: 141 - 148
Copyright
© 2006 ASCE.
History
Received: Dec 12, 2003
Accepted: Mar 7, 2005
Published online: Feb 1, 2006
Published in print: Feb 2006
Notes
Note. Associate Editor: Yunping Xi
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