A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method
文献类型：期刊论文
| 作者 | Ding, Chenxi; Liang, Xintong; Yang, Renshu; Zhang, ZongXian; Guo, Xiao; Feng C(冯春) ; Zhu XG(朱心广); Xie, Quanmin
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| 刊名 | MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
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| 出版日期 | 2023-04 |
| 关键词 | Crushed zone energy dissipation in-situ stress crack propagation stress evolution |
| ISSN号 | 1537-6494 |
| DOI | 10.1080/15376494.2023.2208112 |
| 英文摘要 | Considering the energy consumption of the crushed zone caused by blasting, the energy dissipation characteristics were investigated through theoretical calculation and a plug-in for calculation of energy reduction was made. As a result, an improved CDEM method suitable for studying blast-induced crack propagation was proposed. The improved CDEM method was then used to numerically simulate the blast-induced crack propagation under three different in-situ stress conditions: uniaxial in-situ stress, biaxial equal in-situ stresses and biaxial unequal in-situ stresses. It was found that the in-situ stress conditions had significant effects on the distribution of the blast-induced cracks, the evolution of blast-induced stresses and the propagation of the blast-induced cracks. At the uniaxial in-situ stress condition, the vertical in-situ stress reduced the tip stresses of the horizontal crack and inhibited the propagation of the horizontal crack. At the biaxial equal in-situ stress condition, the peak radial stresses and circumferential stresses of the gauging points decreased gradually with the increase of in-situ stresses. In particular, the circumferential stresses of the gauging points gradually changed from tension to compression with an increasing in-situ stress. At the biaxial unequal in-situ stress condition, there were different inhibitions on crack propagation in the horizontal direction and the vertical one. |
| 分类号 | 二类 |
| WOS研究方向 | WOS:000984809400001 |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [52204085, 51934001] ; Interdisciplinary Research Project for Young Teachers of USTB ; Fundamental Research Funds for the Central Universities [QNXM20220010] ; Foundation of Hubei Key Laboratory of Blasting Engineering [BL2021-05] |
| 其他责任者 | Liang, XT |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92269]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.(Ding Chenxi, Liang Xintong, Yang Renshu) Univ Sci & Technol Beijing Sch Civil & Resource Engn Beijing 100083 Peoples R China 2.(Ding Chenxi, Xie Quanmin) Jianghan Univ Hubei Key Lab Blasting Engn Wuhan Peoples R China 3.(Zhang Zong-Xian) Univ Oulu Oulu Min Sch Oulu Finland 4.(Guo Xiao) Univ Sci & Technol Beijing Sch Math & Phys Beijing Peoples R China 5.(Feng Chun, Zhu Xinguang) Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing Peoples R China 6.(Ding Chenxi, Liang Xintong, Yang Renshu) Univ Sci & Technol Beijing Key Lab Minist Educ High Efficient Min & Safety Met Mines Beijing Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Chenxi,Liang, Xintong,Yang, Renshu,et al. A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method[J]. MECHANICS OF ADVANCED MATERIALS AND STRUCTURES,2023. |
| APA | Ding, Chenxi.,Liang, Xintong.,Yang, Renshu.,Zhang, ZongXian.,Guo, Xiao.,...&Xie, Quanmin.(2023).A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method.MECHANICS OF ADVANCED MATERIALS AND STRUCTURES. |
| MLA | Ding, Chenxi,et al."A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method".MECHANICS OF ADVANCED MATERIALS AND STRUCTURES (2023). |
入库方式： OAI收割
来源：力学研究所
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