Evolution of particle morphology of quartz sand during one-dimensional compression
文献类型：期刊论文
| 作者 | Yao, Ting2,4; Xing, Xin3; Li, Wei1 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 429页码:10 |
| 关键词 | One-dimensional compression Particle breakage Particle size Particle shape Surface roughness |
| ISSN号 | 0032-5910 |
| DOI | 10.1016/j.powtec.2023.118921 |
| 英文摘要 | Particle breakage alters particle size, shape, surface roughness, and co-ordination number, which in turn changes macro-mechanical behaviour including compressibility and shear strength. This study conducted a series of one-dimensional (1D) compression tests on quartz sands with different initial void ratios, ending the tests at various stress levels up to 13.5 MPa. The size and shape of particles were quantified using a dynamic particle shape analyser, while the surface roughness of thirty randomly selected particles for each sample was measured by an optical interferometer and quantified using flattened root-mean-square roughness (RMSf). The results demonstrate that a unique normal compression line is defined due to extensive particle breakage, with denser sample exhibiting a higher yield stress. Prior to yielding (vertical stress < 6 MPa), the changes in the three shape descriptors are limited, as the primary particle damage modes are abrasion and grinding. Conversely, at high stress level, a greater number of particles undergo splitting or explosive damage, leading to the creation of more irregularly shaped particles. The occurrence of plastic deformation at particle asperities under one-dimensional compression is identified, resulting in a decrease in surface roughness. This study highlights the significant role of the initial void ratio in shaping the evolution of surface roughness of particles under 1D compression. |
| 资助项目 | National Natural Science Foundation of China[42177154] ; National Natural Science Foundation of China[42102327] ; Natural Science Foundation of Hubei Province[2022CFB422] ; Open Fund of Key Laboratory of Special Environment Road Engi-neering of Hunan Province, Changsha University of Science amp; Technology[kfj220503] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001070801500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39446]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Wei |
| 作者单位 | 1.China Univ Geosci, Fac Engn, Wuhan, Peoples R China 2.Changsha Univ Sci & Technol, Key Lab Special Environm Rd Engn Hunan Prov, Changsha, Hunan, Peoples R China 3.Univ Hong Kong, Dept Civil Engn, Hong Kong, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Ting,Xing, Xin,Li, Wei. Evolution of particle morphology of quartz sand during one-dimensional compression[J]. POWDER TECHNOLOGY,2023,429:10. |
| APA | Yao, Ting,Xing, Xin,&Li, Wei.(2023).Evolution of particle morphology of quartz sand during one-dimensional compression.POWDER TECHNOLOGY,429,10. |
| MLA | Yao, Ting,et al."Evolution of particle morphology of quartz sand during one-dimensional compression".POWDER TECHNOLOGY 429(2023):10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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