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A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material

In the present work, three different woven composite laminates were fabricated using the hand lay-up method. The woven reinforcement fibres were carbon fibres (CFRP), glass fibres (GFRP-W) and (GFRP-R) in combination with epoxy resin. Then, the central notch specimen tensile test (CNT) was used to m...

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Autores principales: Abdellah, Mohammed Y., Zuwawi, Abdul-Rahman, Azam, Sufyan A., Hassan, Mohamed K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267832/
https://www.ncbi.nlm.nih.gov/pubmed/35806639
http://dx.doi.org/10.3390/ma15134514
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author Abdellah, Mohammed Y.
Zuwawi, Abdul-Rahman
Azam, Sufyan A.
Hassan, Mohamed K.
author_facet Abdellah, Mohammed Y.
Zuwawi, Abdul-Rahman
Azam, Sufyan A.
Hassan, Mohamed K.
author_sort Abdellah, Mohammed Y.
collection PubMed
description In the present work, three different woven composite laminates were fabricated using the hand lay-up method. The woven reinforcement fibres were carbon fibres (CFRP), glass fibres (GFRP-W) and (GFRP-R) in combination with epoxy resin. Then, the central notch specimen tensile test (CNT) was used to measure the fracture toughness and the corresponding surface release energy ([Formula: see text]). Then, the data were compared with the essential work of fracture (we) values based on the stored energy of the body to obtain a new standard fracture toughness test for composite laminates using relatively simple techniques. In addition to an extended finite element model, XFEM was implemented over a central notch specimen geometry to obtain a satisfactory validation of the essential work of fracture concepts. Therefore, the average values of ([Formula: see text]) were measured with CNT specimens 25.15 kJ/m(2), 32.5 kJ/m(2) and 20.22 kJ/m(2) for CFRP, GFRP-W and GFRP-R, respectively. The data are very close as the percentage error for the surface release energy measured by the two methods was 0.83, 4.6 and 5.16 for carbon, glass and random fibre composite laminates, respectively. The data for the fracture toughness of XFEM are also very close. The percentage error is 4.6, 5.25 and 2.95 for carbon, glass and random fibre composite laminates, respectively. Therefore, the fundamental work of the fracture concept is highly recommended as a fracture toughness test for composite laminates or quasi-brittle Material.
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spelling pubmed-92678322022-07-09 A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material Abdellah, Mohammed Y. Zuwawi, Abdul-Rahman Azam, Sufyan A. Hassan, Mohamed K. Materials (Basel) Article In the present work, three different woven composite laminates were fabricated using the hand lay-up method. The woven reinforcement fibres were carbon fibres (CFRP), glass fibres (GFRP-W) and (GFRP-R) in combination with epoxy resin. Then, the central notch specimen tensile test (CNT) was used to measure the fracture toughness and the corresponding surface release energy ([Formula: see text]). Then, the data were compared with the essential work of fracture (we) values based on the stored energy of the body to obtain a new standard fracture toughness test for composite laminates using relatively simple techniques. In addition to an extended finite element model, XFEM was implemented over a central notch specimen geometry to obtain a satisfactory validation of the essential work of fracture concepts. Therefore, the average values of ([Formula: see text]) were measured with CNT specimens 25.15 kJ/m(2), 32.5 kJ/m(2) and 20.22 kJ/m(2) for CFRP, GFRP-W and GFRP-R, respectively. The data are very close as the percentage error for the surface release energy measured by the two methods was 0.83, 4.6 and 5.16 for carbon, glass and random fibre composite laminates, respectively. The data for the fracture toughness of XFEM are also very close. The percentage error is 4.6, 5.25 and 2.95 for carbon, glass and random fibre composite laminates, respectively. Therefore, the fundamental work of the fracture concept is highly recommended as a fracture toughness test for composite laminates or quasi-brittle Material. MDPI 2022-06-27 /pmc/articles/PMC9267832/ /pubmed/35806639 http://dx.doi.org/10.3390/ma15134514 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Abdellah, Mohammed Y.
Zuwawi, Abdul-Rahman
Azam, Sufyan A.
Hassan, Mohamed K.
A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material
title A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material
title_full A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material
title_fullStr A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material
title_full_unstemmed A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material
title_short A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material
title_sort comparative study to evaluate the essential work of fracture to measure the fracture toughness of quasi-brittle material
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267832/
https://www.ncbi.nlm.nih.gov/pubmed/35806639
http://dx.doi.org/10.3390/ma15134514
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