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Study on the Constitutive Model for Jointed Rock Mass

A new elasto-plastic constitutive model for jointed rock mass, which can consider the persistence ratio in different visual angle and anisotropic increase of plastic strain, is proposed. The proposed the yield strength criterion, which is anisotropic, is not only related to friction angle and cohesi...

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Detalles Bibliográficos
Autores principales: Xu, Qiang, Chen, Jianyun, Li, Jing, Zhao, Chunfeng, Yuan, Chenyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4401509/
https://www.ncbi.nlm.nih.gov/pubmed/25885695
http://dx.doi.org/10.1371/journal.pone.0121850
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author Xu, Qiang
Chen, Jianyun
Li, Jing
Zhao, Chunfeng
Yuan, Chenyang
author_facet Xu, Qiang
Chen, Jianyun
Li, Jing
Zhao, Chunfeng
Yuan, Chenyang
author_sort Xu, Qiang
collection PubMed
description A new elasto-plastic constitutive model for jointed rock mass, which can consider the persistence ratio in different visual angle and anisotropic increase of plastic strain, is proposed. The proposed the yield strength criterion, which is anisotropic, is not only related to friction angle and cohesion of jointed rock masses at the visual angle but also related to the intersection angle between the visual angle and the directions of the principal stresses. Some numerical examples are given to analyze and verify the proposed constitutive model. The results show the proposed constitutive model has high precision to calculate displacement, stress and plastic strain and can be applied in engineering analysis.
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spelling pubmed-44015092015-04-21 Study on the Constitutive Model for Jointed Rock Mass Xu, Qiang Chen, Jianyun Li, Jing Zhao, Chunfeng Yuan, Chenyang PLoS One Research Article A new elasto-plastic constitutive model for jointed rock mass, which can consider the persistence ratio in different visual angle and anisotropic increase of plastic strain, is proposed. The proposed the yield strength criterion, which is anisotropic, is not only related to friction angle and cohesion of jointed rock masses at the visual angle but also related to the intersection angle between the visual angle and the directions of the principal stresses. Some numerical examples are given to analyze and verify the proposed constitutive model. The results show the proposed constitutive model has high precision to calculate displacement, stress and plastic strain and can be applied in engineering analysis. Public Library of Science 2015-04-17 /pmc/articles/PMC4401509/ /pubmed/25885695 http://dx.doi.org/10.1371/journal.pone.0121850 Text en © 2015 Xu et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Xu, Qiang
Chen, Jianyun
Li, Jing
Zhao, Chunfeng
Yuan, Chenyang
Study on the Constitutive Model for Jointed Rock Mass
title Study on the Constitutive Model for Jointed Rock Mass
title_full Study on the Constitutive Model for Jointed Rock Mass
title_fullStr Study on the Constitutive Model for Jointed Rock Mass
title_full_unstemmed Study on the Constitutive Model for Jointed Rock Mass
title_short Study on the Constitutive Model for Jointed Rock Mass
title_sort study on the constitutive model for jointed rock mass
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4401509/
https://www.ncbi.nlm.nih.gov/pubmed/25885695
http://dx.doi.org/10.1371/journal.pone.0121850
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