A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic Strain
The process of rock damage and failure is accompanied by the dissipation of energy and an increase in plastic strain. This study attempts to determine the relationship between dissipated energy and plastic strain in sandstone during the damage and failure process. A conventional triaxial cyclic load...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/10/5270 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850127273806528512 |
|---|---|
| author | Tianbai Zhou Xiaoyu Zhang Yongbo Cai Long Wang Qixian Li |
| author_facet | Tianbai Zhou Xiaoyu Zhang Yongbo Cai Long Wang Qixian Li |
| author_sort | Tianbai Zhou |
| collection | DOAJ |
| description | The process of rock damage and failure is accompanied by the dissipation of energy and an increase in plastic strain. This study attempts to determine the relationship between dissipated energy and plastic strain in sandstone during the damage and failure process. A conventional triaxial cyclic loading and unloading test was conducted on sandstone samples to analyze the energy evolution and plastic strain characteristics of rock during the mechanical performance degradation and deformation failure process. The analysis results indicate that the evolution law of rock energy dissipation and plastic growth during the whole stress–strain process is highly consistent. Before the peak stress, dissipated energy and plastic strain increased linearly with input energy and axial strain, respectively. In the residual stress stage, there is an approximate linear evolution relationship between dissipated energy and plastic strain. Based on the correlation characteristics of energy dissipation and plastic growth, a modified damage model was established by characterizing plastic deformation by damage. In addition, a numerical program was developed using the Finite Volume Method (FVM) based on the damage model. The rock damage model has been validated by experimental results and numerical test. The research findings may provide valuable insights into the correlation mechanism between energy dissipation and plastic growth. |
| format | Article |
| id | doaj-art-14d2910b03cb4daebb41cf4d158d31f4 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-14d2910b03cb4daebb41cf4d158d31f42025-08-20T02:33:43ZengMDPI AGApplied Sciences2076-34172025-05-011510527010.3390/app15105270A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic StrainTianbai Zhou0Xiaoyu Zhang1Yongbo Cai2Long Wang3Qixian Li4Emergency Science Research Academy, Chinese Institute of Coal Science, Beijing 100013, ChinaEmergency Science Research Academy, Chinese Institute of Coal Science, Beijing 100013, ChinaEmergency Science Research Academy, Chinese Institute of Coal Science, Beijing 100013, ChinaEmergency Science Research Academy, Chinese Institute of Coal Science, Beijing 100013, ChinaChina Coal Research Institute, Beijing 100013, ChinaThe process of rock damage and failure is accompanied by the dissipation of energy and an increase in plastic strain. This study attempts to determine the relationship between dissipated energy and plastic strain in sandstone during the damage and failure process. A conventional triaxial cyclic loading and unloading test was conducted on sandstone samples to analyze the energy evolution and plastic strain characteristics of rock during the mechanical performance degradation and deformation failure process. The analysis results indicate that the evolution law of rock energy dissipation and plastic growth during the whole stress–strain process is highly consistent. Before the peak stress, dissipated energy and plastic strain increased linearly with input energy and axial strain, respectively. In the residual stress stage, there is an approximate linear evolution relationship between dissipated energy and plastic strain. Based on the correlation characteristics of energy dissipation and plastic growth, a modified damage model was established by characterizing plastic deformation by damage. In addition, a numerical program was developed using the Finite Volume Method (FVM) based on the damage model. The rock damage model has been validated by experimental results and numerical test. The research findings may provide valuable insights into the correlation mechanism between energy dissipation and plastic growth.https://www.mdpi.com/2076-3417/15/10/5270energy dissipationplastic growthcyclic loading and unloadingcorrelation characteristicsFVM |
| spellingShingle | Tianbai Zhou Xiaoyu Zhang Yongbo Cai Long Wang Qixian Li A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic Strain Applied Sciences energy dissipation plastic growth cyclic loading and unloading correlation characteristics FVM |
| title | A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic Strain |
| title_full | A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic Strain |
| title_fullStr | A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic Strain |
| title_full_unstemmed | A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic Strain |
| title_short | A Study on Sandstone Damage Model Based on the Correlation Between Energy Dissipation and Plastic Strain |
| title_sort | study on sandstone damage model based on the correlation between energy dissipation and plastic strain |
| topic | energy dissipation plastic growth cyclic loading and unloading correlation characteristics FVM |
| url | https://www.mdpi.com/2076-3417/15/10/5270 |
| work_keys_str_mv | AT tianbaizhou astudyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT xiaoyuzhang astudyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT yongbocai astudyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT longwang astudyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT qixianli astudyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT tianbaizhou studyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT xiaoyuzhang studyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT yongbocai studyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT longwang studyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain AT qixianli studyonsandstonedamagemodelbasedonthecorrelationbetweenenergydissipationandplasticstrain |