Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete

Buildings and civil engineering structures nowadays are mostly constructed using reinforced concrete. In the reinforced concrete, one of the fundamental factors that influence its strength is bond between bars and concrete. In the reinforced concrete, one of the fundamental factors that influence it...

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Main Author:	Aghlara, Reza
Format:	Thesis
Language:	English
Published:	2010
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/11396/4/RezaAghlaraMFKA2010.pdf
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id	my-utm-ep.11396
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spelling	my-utm-ep.113962017-09-20T07:52:28Z Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete 2010-07 Aghlara, Reza TA Engineering (General). Civil engineering (General) Buildings and civil engineering structures nowadays are mostly constructed using reinforced concrete. In the reinforced concrete, one of the fundamental factors that influence its strength is bond between bars and concrete. In the reinforced concrete, one of the fundamental factors that influence its strength is bond between reinforcement bars and concrete. A lot of research on concrete anchorage bond had been carried out since 1913. However, till today the exact behaviour of anchorage bond in reinforced concrete is not very clear. An attempt to trace the stress contour in concrete due to the presence of anchorage bond had been made. Two dimensional digital image correlations were applied to images of pull-out concrete test blocks. Full-field strains contour on the surface of the concrete blocks were obtained at various level of pull-out forces using digital image correlation software. The strains were converted to stresses using plane stress concrete material constitutive equation. The results of this study show that the digital image correlation method is able to trace the stress components in the concrete surface under the influence of anchorage stresses. The distribution of the longitudinal stresses in the concrete surface along the reinforcement length was found to be nonlinear with maximum value occurs near the loading end. 2010-07 Thesis http://eprints.utm.my/id/eprint/11396/ http://eprints.utm.my/id/eprint/11396/4/RezaAghlaraMFKA2010.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Computer Science and Information System 1. M.A. Sutton (2009). Image Correlation for Shape, Motion and Deformation Measurements. Basic Concepts, Theory and Applications,© Springer Science + Business Media LLC 2. Bing pan, Kemao qian, Huimin xie and Anand asundi (2009). Twodimensional digital image correlation for in-plane displacement and strain measurement. a review’, Published 27 April 2009, Online at stacks.iop.org/MST/20/062001 3. L. Vandewalle, F. Mortelmans (1988). The bond stress between a reinforcement bar and concrete: is it theoretically predictable?, Material and structures, 21, 179-181 4. Homayoun H. Abrishami and Denis Mitchell (1989). Simulation of Uniform Bond Stress, ACI Material Journal, 89-M18 5. J. Pedziwiatr (2009). The influence of the bond between concrete and reinforcement on tension stiffening effect, Magazine of Concrete Research, 61, No. 6, August 6. M. Nadim Hassoun, Akthem AL-Manaseer (2008). Structural Concrete Theory and Design 7. RapidCorrelator (2006). Xstream Engineering technical Brief. 8. Help file of Dic-2D (2010)
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Aghlara, Reza Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete
description	Buildings and civil engineering structures nowadays are mostly constructed using reinforced concrete. In the reinforced concrete, one of the fundamental factors that influence its strength is bond between bars and concrete. In the reinforced concrete, one of the fundamental factors that influence its strength is bond between reinforcement bars and concrete. A lot of research on concrete anchorage bond had been carried out since 1913. However, till today the exact behaviour of anchorage bond in reinforced concrete is not very clear. An attempt to trace the stress contour in concrete due to the presence of anchorage bond had been made. Two dimensional digital image correlations were applied to images of pull-out concrete test blocks. Full-field strains contour on the surface of the concrete blocks were obtained at various level of pull-out forces using digital image correlation software. The strains were converted to stresses using plane stress concrete material constitutive equation. The results of this study show that the digital image correlation method is able to trace the stress components in the concrete surface under the influence of anchorage stresses. The distribution of the longitudinal stresses in the concrete surface along the reinforcement length was found to be nonlinear with maximum value occurs near the loading end.
format	Thesis
qualification_level	Master's degree
author	Aghlara, Reza
author_facet	Aghlara, Reza
author_sort	Aghlara, Reza
title	Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete
title_short	Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete
title_full	Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete
title_fullStr	Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete
title_full_unstemmed	Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete
title_sort	application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Computer Science and Information System
publishDate	2010
url	http://eprints.utm.my/id/eprint/11396/4/RezaAghlaraMFKA2010.pdf
_version_	1747814848807305216

Application of 2-dimensional digital image correlation for mapping bond strain and stress distribution in concrete

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