Numerical modelling for elastic wave equations including rotational deformation and strain gradient
文献类型：期刊论文
| 作者 | Wang,Zhiyang2; Chen,Chaopu2; Li,Youming1,3; Liu,Hong1,3; Bai,Wenlei2 |
| 刊名 | IOP Conference Series: Earth and Environmental Science
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 660期号:1 |
| ISSN号 | 1755-1307 |
| DOI | 10.1088/1755-1315/660/1/012144 |
| 英文摘要 | Abstract In this work, through introducing the first and second derivatives of strain gradient into the strain energy density function that depends only on the classical strain in conventional continuum mechanics theory to describe the microscopic interactions, the elastic wave equations including rotational deformation and strain gradient based on the Aifantis’s strain gradient theory is derived. The elastic wave equations including rotational deformation and strain gradient with consideration of the scale effects caused by the microscopic interactions will make seismograms appear obvious changes, which are reflected in amplitude attenuation and dispersion, especially P-wave and S-wave propagate in a dispersive manner based on this theory. The results of numerical modelling and theoretical analysis verify this conclusion. The closer the wavelength is to the characteristic scale of the media (lattice size and interparticle distance), the macroscopic response which results from the microscopic interactions becomes more prominent. To further study the effects of microstructure interactions, we compare the results of numerical modelling with the real data when high-speed train passed the piers in Dingxing County in both time and frequency domains, some conclusions are drawn from the comparison. |
| 语种 | 英语 |
| WOS记录号 | IOP:1755-1307-660-1-012144 |
| 出版者 | IOP Publishing |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98784]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing, PRC 2.College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, PRC 3.Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, PRC |
| 推荐引用方式 GB/T 7714 | Wang,Zhiyang,Chen,Chaopu,Li,Youming,et al. Numerical modelling for elastic wave equations including rotational deformation and strain gradient[J]. IOP Conference Series: Earth and Environmental Science,2021,660(1). |
| APA | Wang,Zhiyang,Chen,Chaopu,Li,Youming,Liu,Hong,&Bai,Wenlei.(2021).Numerical modelling for elastic wave equations including rotational deformation and strain gradient.IOP Conference Series: Earth and Environmental Science,660(1). |
| MLA | Wang,Zhiyang,et al."Numerical modelling for elastic wave equations including rotational deformation and strain gradient".IOP Conference Series: Earth and Environmental Science 660.1(2021). |
入库方式： OAI收割
来源：地质与地球物理研究所
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