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Fracture energy measurement in different concrete grades

Fracture energy is regarded as an intrinsic (material) properties that dominates crack mechanisms and associated crack growth in concrete damage under applied stress. In recent times, significant advancements in computing technology have driven the adoption of finite element analysis (FEA) methodolo...

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Main Authors: C. L. Yip, H. M. Mohamad, H. Ahmad
Format: Article
Language:English
English
Published: UTHM 2023
Subjects:
TH1-9745 Building construction
TP1080-1185 Polymers and polymer manufacture
Online Access:https://eprints.ums.edu.my/id/eprint/37833/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/37833/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/37833/
https://doi.org/10.30880/ijie.2023.15.02.014
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spelling my.ums.eprints.378332023-12-15T07:56:31Z https://eprints.ums.edu.my/id/eprint/37833/ Fracture energy measurement in different concrete grades C. L. Yip H. M. Mohamad H. Ahmad TH1-9745 Building construction TP1080-1185 Polymers and polymer manufacture Fracture energy is regarded as an intrinsic (material) properties that dominates crack mechanisms and associated crack growth in concrete damage under applied stress. In recent times, significant advancements in computing technology have driven the adoption of finite element analysis (FEA) methodologies that necessitate the integration of constitutive models, including the traction-separation relationship derived from cutting-edge fracture mechanics. A physically-based model requires fracture energy values; therefore, a properly measured fracture energy value is essential to exhibit better structure response within FEA models. There are large arrays of parameters involved during the concrete mixture, such as beam size effect, aggregate size, and concrete grade, that affect the flexural resistance of the concrete. The fracture and failure in concrete ahead of the crack tip are represented by fracture energy values where micro-damage events such as interfacial failure, fiber-bridging, and matrix cracking occurred. This study aims to determine the fracture energy of concrete specimens with combination of notch depth ao at mid-span, design concrete strength as specified in the testing series. Independent compression strength, fc and measured load-displacement profiles under a three-point bending test were used to determine fracture energy by incorporating three available fracture energy expressions such as Bazant, Hillerborg, and CEB-FIP models. UTHM 2023 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/37833/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/37833/2/FULL%20TEXT.pdf C. L. Yip and H. M. Mohamad and H. Ahmad (2023) Fracture energy measurement in different concrete grades. International journal of integrated engineering, 15 (2). pp. 1-8. ISSN 2229-838X https://doi.org/10.30880/ijie.2023.15.02.014
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TH1-9745 Building construction
TP1080-1185 Polymers and polymer manufacture
spellingShingle TH1-9745 Building construction
TP1080-1185 Polymers and polymer manufacture
C. L. Yip
H. M. Mohamad
H. Ahmad
Fracture energy measurement in different concrete grades
description Fracture energy is regarded as an intrinsic (material) properties that dominates crack mechanisms and associated crack growth in concrete damage under applied stress. In recent times, significant advancements in computing technology have driven the adoption of finite element analysis (FEA) methodologies that necessitate the integration of constitutive models, including the traction-separation relationship derived from cutting-edge fracture mechanics. A physically-based model requires fracture energy values; therefore, a properly measured fracture energy value is essential to exhibit better structure response within FEA models. There are large arrays of parameters involved during the concrete mixture, such as beam size effect, aggregate size, and concrete grade, that affect the flexural resistance of the concrete. The fracture and failure in concrete ahead of the crack tip are represented by fracture energy values where micro-damage events such as interfacial failure, fiber-bridging, and matrix cracking occurred. This study aims to determine the fracture energy of concrete specimens with combination of notch depth ao at mid-span, design concrete strength as specified in the testing series. Independent compression strength, fc and measured load-displacement profiles under a three-point bending test were used to determine fracture energy by incorporating three available fracture energy expressions such as Bazant, Hillerborg, and CEB-FIP models.
format Article
author C. L. Yip
H. M. Mohamad
H. Ahmad
author_facet C. L. Yip
H. M. Mohamad
H. Ahmad
author_sort C. L. Yip
title Fracture energy measurement in different concrete grades
title_short Fracture energy measurement in different concrete grades
title_full Fracture energy measurement in different concrete grades
title_fullStr Fracture energy measurement in different concrete grades
title_full_unstemmed Fracture energy measurement in different concrete grades
title_sort fracture energy measurement in different concrete grades
publisher UTHM
publishDate 2023
url https://eprints.ums.edu.my/id/eprint/37833/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/37833/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/37833/
https://doi.org/10.30880/ijie.2023.15.02.014
_version_ 1787134807169302528
score 13.211869

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