A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics
The damage process is categorized into two phases from the perspective of crack evolution, damage recovery induced by the closure of primary cracks and damage growth induced by the propagation of new cracks, to establish a damage evolution equation and constitutive relationship that accounts for the...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-10-01
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| Series: | Rock Mechanics Bulletin |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2773230425000435 |
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| author | Yunpeng Guo Dongqiao Liu Jieyu Li Jian Liu Xiao Tong |
| author_facet | Yunpeng Guo Dongqiao Liu Jieyu Li Jian Liu Xiao Tong |
| author_sort | Yunpeng Guo |
| collection | DOAJ |
| description | The damage process is categorized into two phases from the perspective of crack evolution, damage recovery induced by the closure of primary cracks and damage growth induced by the propagation of new cracks, to establish a damage evolution equation and constitutive relationship that accounts for the initial damage recovery characteristics of rocks. The damage recovery and growth variables are determined through coordinate transformation and the deformation modulus attenuation method, using the damage stress threshold as the critical point. The corresponding theoretical damage evolution equation is developed using the logistic model. In addition, based on the strain equivalence hypothesis, a comprehensive damage evolution equation and constitutive model incorporating the rock's initial compaction process are developed. Finally, the validity of the proposed model is confirmed using uniaxial compression data from gabbro, granite, red sandstone, and yellow sandstone. The results show that the model curve closely aligns with the experimental data. |
| format | Article |
| id | doaj-art-274d15f55eab4adcbc5fbfeb312e8cb2 |
| institution | Kabale University |
| issn | 2773-2304 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Rock Mechanics Bulletin |
| spelling | doaj-art-274d15f55eab4adcbc5fbfeb312e8cb22025-08-22T04:59:03ZengKeAi Communications Co., Ltd.Rock Mechanics Bulletin2773-23042025-10-014410021610.1016/j.rockmb.2025.100216A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristicsYunpeng Guo0Dongqiao Liu1Jieyu Li2Jian Liu3Xiao Tong4State Key Laboratory for Tunnel Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, ChinaState Key Laboratory for Tunnel Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; Corresponding author. State Key Laboratory for Tunnel Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China.State Key Laboratory for Tunnel Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; College of Energy Engineering, Xi'an University of Science and Technology, Xi'an, 710054, ChinaSchool of Geosciences and Engineering, Hebei University of Engineering, Handan, 056006, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; School of Geosciences and Engineering, Hebei University of Engineering, Handan, 056006, ChinaThe damage process is categorized into two phases from the perspective of crack evolution, damage recovery induced by the closure of primary cracks and damage growth induced by the propagation of new cracks, to establish a damage evolution equation and constitutive relationship that accounts for the initial damage recovery characteristics of rocks. The damage recovery and growth variables are determined through coordinate transformation and the deformation modulus attenuation method, using the damage stress threshold as the critical point. The corresponding theoretical damage evolution equation is developed using the logistic model. In addition, based on the strain equivalence hypothesis, a comprehensive damage evolution equation and constitutive model incorporating the rock's initial compaction process are developed. Finally, the validity of the proposed model is confirmed using uniaxial compression data from gabbro, granite, red sandstone, and yellow sandstone. The results show that the model curve closely aligns with the experimental data.http://www.sciencedirect.com/science/article/pii/S2773230425000435CompactionInitial damageLogistic modelDamage evolutionConstitutive model |
| spellingShingle | Yunpeng Guo Dongqiao Liu Jieyu Li Jian Liu Xiao Tong A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics Rock Mechanics Bulletin Compaction Initial damage Logistic model Damage evolution Constitutive model |
| title | A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics |
| title_full | A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics |
| title_fullStr | A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics |
| title_full_unstemmed | A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics |
| title_short | A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics |
| title_sort | logistic based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics |
| topic | Compaction Initial damage Logistic model Damage evolution Constitutive model |
| url | http://www.sciencedirect.com/science/article/pii/S2773230425000435 |
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