Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method
By using the Base Force Element Method (BFEM) on potential energy principle, a new numerical concrete model, random convex aggregate model, is presented in this paper to simulate the experiment under uniaxial compression for recycled aggregate concrete (RAC) which can also be referred to as recycled...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/5075109 |
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| author | Yijiang Peng Hao Chu Jiwei Pu |
| author_facet | Yijiang Peng Hao Chu Jiwei Pu |
| author_sort | Yijiang Peng |
| collection | DOAJ |
| description | By using the Base Force Element Method (BFEM) on potential energy principle, a new numerical concrete model, random convex aggregate model, is presented in this paper to simulate the experiment under uniaxial compression for recycled aggregate concrete (RAC) which can also be referred to as recycled concrete. This model is considered as a heterogeneous composite which is composed of five mediums, including natural coarse aggregate, old mortar, new mortar, new interfacial transition zone (ITZ), and old ITZ. In order to simulate the damage processes of RAC, a curve damage model was adopted as the damage constitutive model and the strength theory of maximum tensile strain was used as the failure criterion in the BFEM on mesomechanics. The numerical results obtained in this paper which contained the uniaxial compressive strengths, size effects on strength, and damage processes of RAC are in agreement with experimental observations. The research works show that the random convex aggregate model and the BFEM with the curve damage model can be used for simulating the relationship between microstructure and mechanical properties of RAC. |
| format | Article |
| id | doaj-art-528ab50a7af542a49acfe7f787033ea6 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-528ab50a7af542a49acfe7f787033ea62025-02-03T01:21:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/50751095075109Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element MethodYijiang Peng0Hao Chu1Jiwei Pu2The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, ChinaThe Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, ChinaThe Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, ChinaBy using the Base Force Element Method (BFEM) on potential energy principle, a new numerical concrete model, random convex aggregate model, is presented in this paper to simulate the experiment under uniaxial compression for recycled aggregate concrete (RAC) which can also be referred to as recycled concrete. This model is considered as a heterogeneous composite which is composed of five mediums, including natural coarse aggregate, old mortar, new mortar, new interfacial transition zone (ITZ), and old ITZ. In order to simulate the damage processes of RAC, a curve damage model was adopted as the damage constitutive model and the strength theory of maximum tensile strain was used as the failure criterion in the BFEM on mesomechanics. The numerical results obtained in this paper which contained the uniaxial compressive strengths, size effects on strength, and damage processes of RAC are in agreement with experimental observations. The research works show that the random convex aggregate model and the BFEM with the curve damage model can be used for simulating the relationship between microstructure and mechanical properties of RAC.http://dx.doi.org/10.1155/2016/5075109 |
| spellingShingle | Yijiang Peng Hao Chu Jiwei Pu Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method Advances in Materials Science and Engineering |
| title | Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method |
| title_full | Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method |
| title_fullStr | Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method |
| title_full_unstemmed | Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method |
| title_short | Numerical Simulation of Recycled Concrete Using Convex Aggregate Model and Base Force Element Method |
| title_sort | numerical simulation of recycled concrete using convex aggregate model and base force element method |
| url | http://dx.doi.org/10.1155/2016/5075109 |
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