A study on flexural modulus and ductility of laminated cementitious composites

This paper presents a new approach for flexural modulus of laminated composites derived from the analysis of a flexural-section composed of several ductile and brittle layers of different moduli. The derivation is based on the assumption that the tension and compression zones of the laminated comp...

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Main Authors: Hossain, M. Z., Abdul Awal, A. S. M.
Format: Article
Language:English
English
Published: Universiti Teknologi Malaysia, Fakulti Kejuruteraan Awam 2010
Subjects:
Online Access:http://eprints.utm.my/25808/4/ASMAbdulAwal2010_AStudyonFlexuralModulusandDuctilityofLaminated.pdf
http://eprints.utm.my/25808/5/11799367.pdf
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author Hossain, M. Z.
Abdul Awal, A. S. M.
author_facet Hossain, M. Z.
Abdul Awal, A. S. M.
author_sort Hossain, M. Z.
collection ePrints
description This paper presents a new approach for flexural modulus of laminated composites derived from the analysis of a flexural-section composed of several ductile and brittle layers of different moduli. The derivation is based on the assumption that the tension and compression zones of the laminated composite are symmetrical with respect to the neutral axis and thus, half of the section is needed to analyze for complete derivation of flexural modulus of the whole section. This composed of two ductile layers of higher moduli providing in both tension and compression zones to maintain the equilibrium conditions during flexure. The formulation shows that the flexural modulus of the entire section of laminated composites obtained by this method is equal to the modulus of ductile layers plus a factor of the difference of modulus of ductile and brittle layers. It is concluded that this factor is different from the usual one which is obtained under uniaxial loadings. Despite the fragile nature of brittle layers of the composite, it has been found that the inclusion of two ductile layers into the laminated cementitious composites makes it fully ductile material owing to the synergetic action between the layers of two components.
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spelling utm.eprints-258082017-10-17T03:02:25Z http://eprints.utm.my/25808/ A study on flexural modulus and ductility of laminated cementitious composites Hossain, M. Z. Abdul Awal, A. S. M. TA Engineering (General). Civil engineering (General) This paper presents a new approach for flexural modulus of laminated composites derived from the analysis of a flexural-section composed of several ductile and brittle layers of different moduli. The derivation is based on the assumption that the tension and compression zones of the laminated composite are symmetrical with respect to the neutral axis and thus, half of the section is needed to analyze for complete derivation of flexural modulus of the whole section. This composed of two ductile layers of higher moduli providing in both tension and compression zones to maintain the equilibrium conditions during flexure. The formulation shows that the flexural modulus of the entire section of laminated composites obtained by this method is equal to the modulus of ductile layers plus a factor of the difference of modulus of ductile and brittle layers. It is concluded that this factor is different from the usual one which is obtained under uniaxial loadings. Despite the fragile nature of brittle layers of the composite, it has been found that the inclusion of two ductile layers into the laminated cementitious composites makes it fully ductile material owing to the synergetic action between the layers of two components. Universiti Teknologi Malaysia, Fakulti Kejuruteraan Awam 2010 Article PeerReviewed application/pdf en http://eprints.utm.my/25808/4/ASMAbdulAwal2010_AStudyonFlexuralModulusandDuctilityofLaminated.pdf text/html en http://eprints.utm.my/25808/5/11799367.pdf Hossain, M. Z. and Abdul Awal, A. S. M. (2010) A study on flexural modulus and ductility of laminated cementitious composites. Malaysian Journal of Civil Engineering, 22 (2). pp. 216-226. ISSN 1823-7843
spellingShingle TA Engineering (General). Civil engineering (General)
Hossain, M. Z.
Abdul Awal, A. S. M.
A study on flexural modulus and ductility of laminated cementitious composites
title A study on flexural modulus and ductility of laminated cementitious composites
title_full A study on flexural modulus and ductility of laminated cementitious composites
title_fullStr A study on flexural modulus and ductility of laminated cementitious composites
title_full_unstemmed A study on flexural modulus and ductility of laminated cementitious composites
title_short A study on flexural modulus and ductility of laminated cementitious composites
title_sort study on flexural modulus and ductility of laminated cementitious composites
topic TA Engineering (General). Civil engineering (General)
url http://eprints.utm.my/25808/4/ASMAbdulAwal2010_AStudyonFlexuralModulusandDuctilityofLaminated.pdf
http://eprints.utm.my/25808/5/11799367.pdf
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