The difference between the dynamic deformation properties of rock material under seismic load and cyclic loading: a case study on Kobe wave
文献类型：期刊论文
| 作者 | Zhou, Yongqiang; Sheng, Qian; Fu, Xiaodong; Ding, Haifeng |
| 刊名 | MECHANICS OF TIME-DEPENDENT MATERIALS
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 27期号:2页码:401 |
| ISSN号 | 1385-2000 |
| 关键词 | Dynamic deformation properties Rock material Seismic load Cyclic loading Dynamic constitutive model Maximum stress |
| 英文摘要 | To study the dynamic mechanical properties of rock materials under seismic loads, seismic loads are generally simplified to constant amplitude cyclic loads due to the limitations of test equipment and conditions. However, the characteristics of rock material under seismic load are rarely reported, and the difference between the dynamic deformation properties of rock material under seismic load and cyclic loading is unclear. Therefore, it might be unreasonable that the seismic loads are generally simplified to constant amplitude cyclic loads. Thus, to find a reasonable equivalent form of seismic loads, Kobe wave was selected as a case study. Based on the dynamic constitutive model for rock materials suited to dynamic cyclic loading proposed by Zhou et al. (2022), the dynamic mechanical properties of a rock material (T(2y)6 marble) under the seismic load and three common dynamic cyclic loadings (including constant amplitude cyclic loading, tiered cyclic loading, and symmetrical tiered cyclic loading) with four different maximum stresses were simulated. And the difference of the properties of rock under the seismic load and dynamic cyclic loading are analyzed by considering the deformation, modulus, and damage of the rock. The results show the stress-strain curves of the rock under seismic load exhibit the cyclic behavior of rock materials, while the size and range of loading and unloading in each cycle are different. Moreover, the smoothness of variation in plastic internal variable of rock and the damage under seismic load is weaker than that under these three cyclic loading regimes. Furthermore, the order of final strain, maximum plastic internal variable, maximum deformation modulus and final deformation modulus of the rock under different loads varies. Overall, the symmetrical tiered cyclic loading can be the best choice of these three cyclic loading to study the dynamic properties of rock under seismic load. Finally, steps necessary to determine the corresponding symmetrical tiered cyclic loading of a seismic load are provided. |
| 学科主题 | Mechanics ; Materials Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000905208200001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34763]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Zhou, Yongqiang,Sheng, Qian,Fu, Xiaodong,et al. The difference between the dynamic deformation properties of rock material under seismic load and cyclic loading: a case study on Kobe wave[J]. MECHANICS OF TIME-DEPENDENT MATERIALS,2023,27(2):401. |
| APA | Zhou, Yongqiang,Sheng, Qian,Fu, Xiaodong,&Ding, Haifeng.(2023).The difference between the dynamic deformation properties of rock material under seismic load and cyclic loading: a case study on Kobe wave.MECHANICS OF TIME-DEPENDENT MATERIALS,27(2),401. |
| MLA | Zhou, Yongqiang,et al."The difference between the dynamic deformation properties of rock material under seismic load and cyclic loading: a case study on Kobe wave".MECHANICS OF TIME-DEPENDENT MATERIALS 27.2(2023):401. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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