Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading

Fractional plasticity has been originally proposed for capturing the state-dependent nonassociated behaviour of sand, with no use of state variables and additional plastic potentials. However, for coarse aggregates, significant particle breakage would occur, which could influence the stress-strain b...

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Main Authors: Jiangong Yang, Yifei Sun
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2021/6642461
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author Jiangong Yang
Yifei Sun
author_facet Jiangong Yang
Yifei Sun
author_sort Jiangong Yang
collection DOAJ
description Fractional plasticity has been originally proposed for capturing the state-dependent nonassociated behaviour of sand, with no use of state variables and additional plastic potentials. However, for coarse aggregates, significant particle breakage would occur, which could influence the stress-strain behaviour of the material, by shifting the critical state line in the e−ln  p′ plane. In this note, an extension of the fractional plasticity for constitutive modelling of coarse aggregates is made by incorporating particle breakage under triaxial loading. The developed model is validated by simulating a series of laboratory test results of different coarse aggregates under triaxial loading, where a good agreement between the model simulations and test results is observed.
format Article
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institution Kabale University
issn 1687-8086
1687-8094
language English
publishDate 2021-01-01
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series Advances in Civil Engineering
spelling doaj-art-c895e5a369334db48a730ca86469ce832025-02-03T01:28:31ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66424616642461Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial LoadingJiangong Yang0Yifei Sun1Tianjin College, University of Science and Technology Beijing, Tianjin 301800, ChinaFaculty of Civil and Environmental Engineering, Ruhr-Universität Bochum, Bochum 44801, GermanyFractional plasticity has been originally proposed for capturing the state-dependent nonassociated behaviour of sand, with no use of state variables and additional plastic potentials. However, for coarse aggregates, significant particle breakage would occur, which could influence the stress-strain behaviour of the material, by shifting the critical state line in the e−ln  p′ plane. In this note, an extension of the fractional plasticity for constitutive modelling of coarse aggregates is made by incorporating particle breakage under triaxial loading. The developed model is validated by simulating a series of laboratory test results of different coarse aggregates under triaxial loading, where a good agreement between the model simulations and test results is observed.http://dx.doi.org/10.1155/2021/6642461
spellingShingle Jiangong Yang
Yifei Sun
Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading
Advances in Civil Engineering
title Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading
title_full Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading
title_fullStr Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading
title_full_unstemmed Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading
title_short Fractional Plasticity Model for Coarse Aggregates Incorporating Particle Breakage under Triaxial Loading
title_sort fractional plasticity model for coarse aggregates incorporating particle breakage under triaxial loading
url http://dx.doi.org/10.1155/2021/6642461
work_keys_str_mv AT jiangongyang fractionalplasticitymodelforcoarseaggregatesincorporatingparticlebreakageundertriaxialloading
AT yifeisun fractionalplasticitymodelforcoarseaggregatesincorporatingparticlebreakageundertriaxialloading