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An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens

The paper deals with an approximate method for calculating elastic–plastic stresses and strains on the surface of notched samples. The method is based on the Abdel–Karim–Ohno cyclic plasticity model. The plane stress condition is considered within the evaluation. The output of the approximation on s...

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Detalles Bibliográficos
Autores principales: Lutovinov, Maxim, Halama, Radim, Papuga, Jan, Bartošák, Michal, Kuželka, Jiří, Růžička, Milan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8876333/
https://www.ncbi.nlm.nih.gov/pubmed/35207972
http://dx.doi.org/10.3390/ma15041432
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author Lutovinov, Maxim
Halama, Radim
Papuga, Jan
Bartošák, Michal
Kuželka, Jiří
Růžička, Milan
author_facet Lutovinov, Maxim
Halama, Radim
Papuga, Jan
Bartošák, Michal
Kuželka, Jiří
Růžička, Milan
author_sort Lutovinov, Maxim
collection PubMed
description The paper deals with an approximate method for calculating elastic–plastic stresses and strains on the surface of notched samples. The method is based on the Abdel–Karim–Ohno cyclic plasticity model. The plane stress condition is considered within the evaluation. The output of the approximation on several multiaxial axial–torsion load paths is compared to our own experimental results. Experiments were carried out on samples of two notch types manufactured from the 2124-T851 aluminum alloy. Strain distribution in the notch area was measured by digital image correlation. The comparison between computational solution and measured response shows that the new method allows for obtaining reasonably good approximation, even for relatively complicated multiaxial load cases.
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spelling pubmed-88763332022-02-26 An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens Lutovinov, Maxim Halama, Radim Papuga, Jan Bartošák, Michal Kuželka, Jiří Růžička, Milan Materials (Basel) Article The paper deals with an approximate method for calculating elastic–plastic stresses and strains on the surface of notched samples. The method is based on the Abdel–Karim–Ohno cyclic plasticity model. The plane stress condition is considered within the evaluation. The output of the approximation on several multiaxial axial–torsion load paths is compared to our own experimental results. Experiments were carried out on samples of two notch types manufactured from the 2124-T851 aluminum alloy. Strain distribution in the notch area was measured by digital image correlation. The comparison between computational solution and measured response shows that the new method allows for obtaining reasonably good approximation, even for relatively complicated multiaxial load cases. MDPI 2022-02-15 /pmc/articles/PMC8876333/ /pubmed/35207972 http://dx.doi.org/10.3390/ma15041432 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
Lutovinov, Maxim
Halama, Radim
Papuga, Jan
Bartošák, Michal
Kuželka, Jiří
Růžička, Milan
An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens
title An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens
title_full An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens
title_fullStr An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens
title_full_unstemmed An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens
title_short An Approximate Method for Calculating Elastic–Plastic Stress and Strain on Notched Specimens
title_sort approximate method for calculating elastic–plastic stress and strain on notched specimens
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8876333/
https://www.ncbi.nlm.nih.gov/pubmed/35207972
http://dx.doi.org/10.3390/ma15041432
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