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Estimation of Cement Composites Fracture Parameters Using Deformation Criterion

A simple deformation criterion based on Dugdale’s cohesive zone model is presented. The criterion can be used for both the experimental determination of the critical stress intensity factor, K(Ic), and the critical tip opening displacement, CTOD(c). It can also be applied for the evaluation of the l...

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Autores principales: Kosior-Kazberuk, Marta, Kazberuk, Andrzej, Bernatowicz, Anna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947602/
https://www.ncbi.nlm.nih.gov/pubmed/31847363
http://dx.doi.org/10.3390/ma12244206
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author Kosior-Kazberuk, Marta
Kazberuk, Andrzej
Bernatowicz, Anna
author_facet Kosior-Kazberuk, Marta
Kazberuk, Andrzej
Bernatowicz, Anna
author_sort Kosior-Kazberuk, Marta
collection PubMed
description A simple deformation criterion based on Dugdale’s cohesive zone model is presented. The criterion can be used for both the experimental determination of the critical stress intensity factor, K(Ic), and the critical tip opening displacement, CTOD(c). It can also be applied for the evaluation of the load capacity of structural elements. The criterion is presented in explicit and compact form, which allows straightforward calculations to be performed for the estimation of K(Ic) and CTOD(c) values from the experimental data obtained from samples with a U-shaped notch, rounded with an arbitrary radius. Thanks to the simple form of the approximate relationship between the maximal load level and the dimensionless notch tip opening displacement, the reverse procedure was obtained, i.e., the estimation of the value of the maximal force loading the structural element as a function of the known critical stress intensity factor.
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spelling pubmed-69476022020-01-13 Estimation of Cement Composites Fracture Parameters Using Deformation Criterion Kosior-Kazberuk, Marta Kazberuk, Andrzej Bernatowicz, Anna Materials (Basel) Article A simple deformation criterion based on Dugdale’s cohesive zone model is presented. The criterion can be used for both the experimental determination of the critical stress intensity factor, K(Ic), and the critical tip opening displacement, CTOD(c). It can also be applied for the evaluation of the load capacity of structural elements. The criterion is presented in explicit and compact form, which allows straightforward calculations to be performed for the estimation of K(Ic) and CTOD(c) values from the experimental data obtained from samples with a U-shaped notch, rounded with an arbitrary radius. Thanks to the simple form of the approximate relationship between the maximal load level and the dimensionless notch tip opening displacement, the reverse procedure was obtained, i.e., the estimation of the value of the maximal force loading the structural element as a function of the known critical stress intensity factor. MDPI 2019-12-14 /pmc/articles/PMC6947602/ /pubmed/31847363 http://dx.doi.org/10.3390/ma12244206 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kosior-Kazberuk, Marta
Kazberuk, Andrzej
Bernatowicz, Anna
Estimation of Cement Composites Fracture Parameters Using Deformation Criterion
title Estimation of Cement Composites Fracture Parameters Using Deformation Criterion
title_full Estimation of Cement Composites Fracture Parameters Using Deformation Criterion
title_fullStr Estimation of Cement Composites Fracture Parameters Using Deformation Criterion
title_full_unstemmed Estimation of Cement Composites Fracture Parameters Using Deformation Criterion
title_short Estimation of Cement Composites Fracture Parameters Using Deformation Criterion
title_sort estimation of cement composites fracture parameters using deformation criterion
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6947602/
https://www.ncbi.nlm.nih.gov/pubmed/31847363
http://dx.doi.org/10.3390/ma12244206
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