Experimental study on dynamic shear modulus and damping ratio of CAS-1 lunar regolith simulant
文献类型：期刊论文
| 作者 | Yu, F.; Chen, Sh. X.; Zhang, Y.; Li, J.; Dai, Zh. J. |
| 刊名 | BULGARIAN CHEMICAL COMMUNICATIONS
 |
| 出版日期 | 2017 |
| 卷号 | 49页码:159-164 |
| 关键词 | CAS-1 lunar regolith simulant Dynamic shear modulus Damping ratio Dynamic shear modulus ratio |
| ISSN号 | 0324-1130 |
| 英文摘要 | In the paper an experimental study of the dynamic parameters of CAS-1 lunar regolith stimulant is carried out, and the law by which different void ratios and confining pressures influence the dynamic shear modulus G and the damping ratio. is analyzed. The test results show that, in the case of real lunar surface under very low stress levels and large void ratio, the dynamic shear modulus G is smaller, and the damping ratio lambda is larger; the dynamic shear modulus diminishes quickly and the damping ratio increases sharply along with the increase of dynamic shear strain gamma. Using the Hardin-Drnevich Model, the paper comes to the average fitted curve of the normalized dynamic shear modulus G/G(max) and the normalized damping ratio lambda/lambda(max) changing with gamma on the conditions of different void ratios and confining pressures. The correlative equation between the maximum dynamic shear modulus G(max), the maximum damping ratio lambda(max), the dynamic parameters such as the reference shear strain gamma(r) and the stress levels sigma are discussed. Based on this, the range intervals of G(max), lambda(max) and gamma(r) within the coring and sampling depth (0 similar to 3m) of lunar regolith, as well as the recommended values of G/G(max) and lambda corresponding to various shear strain are presented. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000432662500031 |
| 出版者 | BULGARIAN ACAD SCIENCE |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/20837]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yu, F. |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, F.,Chen, Sh. X.,Zhang, Y.,et al. Experimental study on dynamic shear modulus and damping ratio of CAS-1 lunar regolith simulant[J]. BULGARIAN CHEMICAL COMMUNICATIONS,2017,49:159-164. |
| APA | Yu, F.,Chen, Sh. X.,Zhang, Y.,Li, J.,&Dai, Zh. J..(2017).Experimental study on dynamic shear modulus and damping ratio of CAS-1 lunar regolith simulant.BULGARIAN CHEMICAL COMMUNICATIONS,49,159-164. |
| MLA | Yu, F.,et al."Experimental study on dynamic shear modulus and damping ratio of CAS-1 lunar regolith simulant".BULGARIAN CHEMICAL COMMUNICATIONS 49(2017):159-164. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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