Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular Dynamics
The calibration of material mechanical parameters and deformation and failure mechanism of earthen soil have always been difficult problems in the field of cultural relics protection. How to establish a relationship between physical and mechanical properties of soil at macro and micro scales is the...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/8591973 |
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| author | Jianwei Yue Xuanjia Huang Peng Li Tingting Yue |
| author_facet | Jianwei Yue Xuanjia Huang Peng Li Tingting Yue |
| author_sort | Jianwei Yue |
| collection | DOAJ |
| description | The calibration of material mechanical parameters and deformation and failure mechanism of earthen soil have always been difficult problems in the field of cultural relics protection. How to establish a relationship between physical and mechanical properties of soil at macro and micro scales is the focus of the research. The nanostructure model of earthen soil composed of many atoms was established by molecular dynamics (MD) method. The stress-strain relationship of different moisture content was obtained by uniaxial compression simulation. Based on the electron micrograph image (magnification ×500) and the image reconstruction method, a micromodel composed of particles and pores was constructed. Furthermore, using the displacement loading method, we obtained the stress-strain relationship of the earthen soil with different moisture contents. Our results showed that the displacement of the left and right boundaries of the circular pore model is 1.26 times more than that of the polygonal pore model, and the displacement of the polygonal pore model is 1.28 times more than that of the circular pore model. The stress-strain curve simulated by the polygonal pore model is consistent with the experimental results. The results of the numerical analysis are in good agreement with those of the macro test, which indicates that the research ideas and the methods used for earthen soil exploration in this work are feasible. Our present findings provide reference for deterioration research and safety evaluation of cultural relic buildings such as earthen sites. |
| format | Article |
| id | doaj-art-b2d31015306e4a6c84aa46b6623dd97c |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-b2d31015306e4a6c84aa46b6623dd97c2025-02-03T01:09:52ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/8591973Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular DynamicsJianwei Yue0Xuanjia Huang1Peng Li2Tingting Yue3School of Civil Engineering and ArchitectureSchool of Civil Engineering and ArchitectureSchool of Civil Engineering and ArchitectureKey Laboratory for Restoration and Safety Evaluation of Immovable Cultural Relics in KaifengThe calibration of material mechanical parameters and deformation and failure mechanism of earthen soil have always been difficult problems in the field of cultural relics protection. How to establish a relationship between physical and mechanical properties of soil at macro and micro scales is the focus of the research. The nanostructure model of earthen soil composed of many atoms was established by molecular dynamics (MD) method. The stress-strain relationship of different moisture content was obtained by uniaxial compression simulation. Based on the electron micrograph image (magnification ×500) and the image reconstruction method, a micromodel composed of particles and pores was constructed. Furthermore, using the displacement loading method, we obtained the stress-strain relationship of the earthen soil with different moisture contents. Our results showed that the displacement of the left and right boundaries of the circular pore model is 1.26 times more than that of the polygonal pore model, and the displacement of the polygonal pore model is 1.28 times more than that of the circular pore model. The stress-strain curve simulated by the polygonal pore model is consistent with the experimental results. The results of the numerical analysis are in good agreement with those of the macro test, which indicates that the research ideas and the methods used for earthen soil exploration in this work are feasible. Our present findings provide reference for deterioration research and safety evaluation of cultural relic buildings such as earthen sites.http://dx.doi.org/10.1155/2022/8591973 |
| spellingShingle | Jianwei Yue Xuanjia Huang Peng Li Tingting Yue Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular Dynamics Advances in Materials Science and Engineering |
| title | Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular Dynamics |
| title_full | Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular Dynamics |
| title_fullStr | Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular Dynamics |
| title_full_unstemmed | Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular Dynamics |
| title_short | Analysis of Stress-Strain Relationship of Earthen Soil Based on Molecular Dynamics |
| title_sort | analysis of stress strain relationship of earthen soil based on molecular dynamics |
| url | http://dx.doi.org/10.1155/2022/8591973 |
| work_keys_str_mv | AT jianweiyue analysisofstressstrainrelationshipofearthensoilbasedonmoleculardynamics AT xuanjiahuang analysisofstressstrainrelationshipofearthensoilbasedonmoleculardynamics AT pengli analysisofstressstrainrelationshipofearthensoilbasedonmoleculardynamics AT tingtingyue analysisofstressstrainrelationshipofearthensoilbasedonmoleculardynamics |