Dynamic mechanical behaviors of interbedded marble subjected to multi-level uniaxial compressive cyclic loading conditions: An insight into fracture evolution analysis
文献类型：期刊论文
| 作者 | Wang, Y.2; Hu, Y. Z.1; Gao, S. H.2 |
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2021 |
| 卷号 | 241页码:17 |
| 关键词 | Interbedded marble Cyclic loading Fracture evolution Damage evolution model CT scanning |
| ISSN号 | 0013-7944 |
| DOI | 10.1016/j.engfracmech.2020.107410 |
| 英文摘要 | Rocks in civil and mining engineering usually experience rather complex stress disturbance. Rock dynamic mechanical behaviors under constant stress amplitude condition have been widely studied. However, the rock fracture evolution characteristics subjected to multi-level cyclic loading conditions are not well understood. In this work, multi-level cyclic compressive loading experiments were performed on marble with interbed orientation of 0 degrees, 30 degrees, 60 degrees and 90 degrees. Anisotropic fracture evolution characteristics were revealed using dynamic stress strain descriptions and post-test CT scanning technique. Results show that rock fatigue deformation, strength, lifetime, dynamic elastic modulus and damping ratio are all impacted by rock structure. The interbed structure plays a dominant role in fracture evolution compared with natural fracture and pyrite band. Rock stiffness degrades and damping ratio increases with the increase of interbed orientation. In addition, a two-phase damage accumulation pattern was found for marble under multi-level cyclic loading condition. A damage evolution model was first established to model damage accumulation, the proposed model fits well to the experimental data. Moreover, post-test CT scanning reveals the internal crack coalescence pattern and failure mode is impacted by the interactions of interbeds, natural fracture and pyrite bands. The rock bridge structure in marble with 60 degrees and 90 degrees interbed orientation alters the crack propagation path. Although the crack pattern is relatively simple at rock bridge segment, much more energy is needed to drive crack propagation. The testing results are expected to improve the understanding of the influence of rock structure on fracture evolution when subjected to variable stress amplitude loading conditions. |
| WOS关键词 | FATIGUE-DAMAGE ; ROCK ; ENERGY ; MODEL ; PREDICTION |
| 资助项目 | Fundamental Research Funds for the Central Universities[FRF-TP-20-004A2] ; Beijing Natural Science Foundation[8202033] |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000605612000003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/99994]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang, Y. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, 19 Beitucheng West Rd, Beijing 100029, Peoples R China 2.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Dept Civil Engn, Beijing Key Lab Urban Underground Space Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Y.,Hu, Y. Z.,Gao, S. H.. Dynamic mechanical behaviors of interbedded marble subjected to multi-level uniaxial compressive cyclic loading conditions: An insight into fracture evolution analysis[J]. ENGINEERING FRACTURE MECHANICS,2021,241:17. |
| APA | Wang, Y.,Hu, Y. Z.,&Gao, S. H..(2021).Dynamic mechanical behaviors of interbedded marble subjected to multi-level uniaxial compressive cyclic loading conditions: An insight into fracture evolution analysis.ENGINEERING FRACTURE MECHANICS,241,17. |
| MLA | Wang, Y.,et al."Dynamic mechanical behaviors of interbedded marble subjected to multi-level uniaxial compressive cyclic loading conditions: An insight into fracture evolution analysis".ENGINEERING FRACTURE MECHANICS 241(2021):17. |
入库方式： OAI收割
来源：地质与地球物理研究所
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