Mechanical behaviors and progressive fracture processes of dry basalt after Martian cryogenic freeze-thaw cycles
文献类型：期刊论文
| 作者 | Feng, Yujie1,2; Pan, Peng-Zhi1,2; Hou, Wenbo1,2; Zheng, Qingsong1,2; Wang, Zhaofeng1,2 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 31页码:4153-4164 |
| 关键词 | Martian cryogenic temperature Freeze-thaw cycles Mechanical behaviors Progressive fracture process |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2024.07.113 |
| 英文摘要 | The steep Martian terrain features numerous notches and alcoves that could potentially be adapted as temporary shelters. By sealing their entrances and modifying the interior space, these alcoves can be transformed into habitable structures. Given their prolonged exposure to Martian temperature fluctuations, it is crucial to understand the mechanical properties of alcove rocks to design appropriate shelter parameters. This study investigates the mechanical behavior of basalt specimens subjected to Martian cryogenic freeze-thaw (F-T) cycles (-143 similar to 35 degrees C) and subsequent uniaxial cyclic loading tests. The test results indicate that the longitudinal wave velocity, peak stress, and elastic modulus of basalt specimens degrade to varying degrees with an increasing number of F-T cycles. At higher stress levels, the ratio of dissipated energy density to elastic energy density in basalt specimens subjected to different F-T treatments converges to approximately 0.25. During the uniaxial cyclic loading tests, both cumulative acoustic emission (AE) counts and average maximum principal strains of the specimens increase stepwise. For specimens after F-T treatment, the spectral-domain characteristics can be classified into three frequency bands, with the middle and high frequencies predominating. The application of the Gaussian Mixture Model (GMM) clustering algorithm enhances the analysis of AE results, facilitating the identification of tensile and shear cracks. As the number of F-T cycles increases, the percentage of shear cracks in basalt specimens decreases from 76.5% (0 cycle) to 53.5% (7 cycles). |
| 资助项目 | National Natural Science Foundation of China[52125903] ; National Natural Science Foundation of China[52339001] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001284478900001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42144]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Pan, Peng-Zhi |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.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 | Feng, Yujie,Pan, Peng-Zhi,Hou, Wenbo,et al. Mechanical behaviors and progressive fracture processes of dry basalt after Martian cryogenic freeze-thaw cycles[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,31:4153-4164. |
| APA | Feng, Yujie,Pan, Peng-Zhi,Hou, Wenbo,Zheng, Qingsong,&Wang, Zhaofeng.(2024).Mechanical behaviors and progressive fracture processes of dry basalt after Martian cryogenic freeze-thaw cycles.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,31,4153-4164. |
| MLA | Feng, Yujie,et al."Mechanical behaviors and progressive fracture processes of dry basalt after Martian cryogenic freeze-thaw cycles".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 31(2024):4153-4164. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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