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A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials

Most of the mechanical components manufactured in rubber materials experience fluctuating loads, which cause material fatigue, significantly reducing their life. Different models have been used to approach this problem. However, most of them just provide life prediction only valid for each of the sp...

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Detalles Bibliográficos
Autores principales: Tobajas, Rafael, Elduque, Daniel, Ibarz, Elena, Javierre, Carlos, Gracia, Luis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7285379/
https://www.ncbi.nlm.nih.gov/pubmed/32456238
http://dx.doi.org/10.3390/polym12051194
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author Tobajas, Rafael
Elduque, Daniel
Ibarz, Elena
Javierre, Carlos
Gracia, Luis
author_facet Tobajas, Rafael
Elduque, Daniel
Ibarz, Elena
Javierre, Carlos
Gracia, Luis
author_sort Tobajas, Rafael
collection PubMed
description Most of the mechanical components manufactured in rubber materials experience fluctuating loads, which cause material fatigue, significantly reducing their life. Different models have been used to approach this problem. However, most of them just provide life prediction only valid for each of the specific studied material and type of specimen used for the experimental testing. This work focuses on the development of a new generalized model of multiaxial fatigue for rubber materials, introducing a multiparameter variable to improve fatigue life prediction by considering simultaneously relevant information concerning stresses, strains, and strain energies. The model is verified through its correlation with several published fatigue tests for different rubber materials. The proposed model has been compared with more than 20 different parameters used in the specialized literature, calculating the value of the R(2) coefficient by comparing the predicted values of every model, with the experimental ones. The obtained results show a significant improvement in the fatigue life prediction. The proposed model does not aim to be a universal and definitive approach for elastomer fatigue, but it provides a reliable general tool that can be used for processing data obtained from experimental tests carried out under different conditions.
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spelling pubmed-72853792020-06-17 A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials Tobajas, Rafael Elduque, Daniel Ibarz, Elena Javierre, Carlos Gracia, Luis Polymers (Basel) Article Most of the mechanical components manufactured in rubber materials experience fluctuating loads, which cause material fatigue, significantly reducing their life. Different models have been used to approach this problem. However, most of them just provide life prediction only valid for each of the specific studied material and type of specimen used for the experimental testing. This work focuses on the development of a new generalized model of multiaxial fatigue for rubber materials, introducing a multiparameter variable to improve fatigue life prediction by considering simultaneously relevant information concerning stresses, strains, and strain energies. The model is verified through its correlation with several published fatigue tests for different rubber materials. The proposed model has been compared with more than 20 different parameters used in the specialized literature, calculating the value of the R(2) coefficient by comparing the predicted values of every model, with the experimental ones. The obtained results show a significant improvement in the fatigue life prediction. The proposed model does not aim to be a universal and definitive approach for elastomer fatigue, but it provides a reliable general tool that can be used for processing data obtained from experimental tests carried out under different conditions. MDPI 2020-05-23 /pmc/articles/PMC7285379/ /pubmed/32456238 http://dx.doi.org/10.3390/polym12051194 Text en © 2020 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
Tobajas, Rafael
Elduque, Daniel
Ibarz, Elena
Javierre, Carlos
Gracia, Luis
A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials
title A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials
title_full A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials
title_fullStr A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials
title_full_unstemmed A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials
title_short A New Multiparameter Model for Multiaxial Fatigue Life Prediction of Rubber Materials
title_sort new multiparameter model for multiaxial fatigue life prediction of rubber materials
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7285379/
https://www.ncbi.nlm.nih.gov/pubmed/32456238
http://dx.doi.org/10.3390/polym12051194
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