Variable Parameter Creep Model Based on the Separation of Viscoelastic and Viscoplastic Deformations
文献类型：期刊论文
| 作者 | Liu, Wenbo2,3; Zhou, Hui2,3; Zhang, Shuguang1,4; Zhao, Chengwei2,3 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 56期号:6页码:4629 |
| 关键词 | Rheological properties Surrounding rock Instantaneous elastic strain Non-linear viscoelastic strain Viscoplastic strain Non-linear |
| ISSN号 | 0723-2632 |
| 英文摘要 | The MTS815.02 rock test system is used for performing triaxial compression creep experiments on sandstone to reveal the rheological properties of the rock in deep roadways. Instantaneous elastic, viscoelastic, and viscoplastic strains are separated, and the relationship between the model parameters and the stress and time is established by combining the characteristics of the creep curve. According to non-linear rheological theory, the constitutive equation of a creep model of the rock under a three-dimensional stress state is deduced, and the validity of the model is verified by the experimental data. Results show that the improved creep model comprehensively considers instantaneous elastic, non-linear viscoelastic, and viscoplastic strains, making the theoretical curve of the model highly consistent with the experimental curve. The model can describe the non-linear creep during the loading of sandstone. It can also reflect the creep parameters during the deformation. The correlation coefficients of the experimental curve and the theoretical curve under the same stress are both greater than 0.90. The comparison results verify the validity and feasibility of the creep model. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000951101600001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35290]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering, Guilin University of Technology, Guilin 541004, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin 541004, China |
| 推荐引用方式 GB/T 7714 | Liu, Wenbo,Zhou, Hui,Zhang, Shuguang,et al. Variable Parameter Creep Model Based on the Separation of Viscoelastic and Viscoplastic Deformations[J]. ROCK MECHANICS AND ROCK ENGINEERING,2023,56(6):4629. |
| APA | Liu, Wenbo,Zhou, Hui,Zhang, Shuguang,&Zhao, Chengwei.(2023).Variable Parameter Creep Model Based on the Separation of Viscoelastic and Viscoplastic Deformations.ROCK MECHANICS AND ROCK ENGINEERING,56(6),4629. |
| MLA | Liu, Wenbo,et al."Variable Parameter Creep Model Based on the Separation of Viscoelastic and Viscoplastic Deformations".ROCK MECHANICS AND ROCK ENGINEERING 56.6(2023):4629. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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