Edge crack growth of mortar plate specimens under uniaxial loading tests
文献类型：期刊论文
| 作者 | Huang, Zhenghong; Deng, Shouchun; Li, Haibo ; Zuo, Hong
|
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2019 |
| 卷号 | 11期号:2页码:300-313 |
| 关键词 | Mortar plate specimen Direct tension test Interaction crack Crack path Crack propagation Stress-strain curve |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2018.12.005 |
| 英文摘要 | In this paper, a compression-to-tension conversion technique is developed by applying predominant mode I loading test, using a servo-controlled compression system. The technique is applied to thin mortar plate specimens of different widths that include a prefabricated crack on either a single side to facilitate unilateral crack propagation, or prefabricated cracks positioned on both sides asymmetrically with respect to the specimen midpoint to facilitate bilateral crack propagation under direct tensile stress with a loading rate of 0.001 mm/s. The results show that the main pathways of unilateral crack propagation governing specimen failure are fluctuated locally, but present an approximately straight line overall in the absence of pre-existing internal defects. However, the pathways of bilateral crack propagation are relatively complex, although they present similar characteristics. Analysis results suggest that bilateral crack propagation can be basically divided into three stages, i.e. a stage of linear propagation, a stage representing deviation from the other crack, and a stage where one crack approaches either the other crack or approaches the opposite edge of the specimen, and thereby forming a continuous crack through the specimen. In addition, the stress-strain curves of bilateral crack specimens do not vary significantly around the point of peak stress prior to specimen failure, which means that the specimens do not fail instantaneously. (C) 2019 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000464323800008 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15006]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Zhenghong,Deng, Shouchun,Li, Haibo,et al. Edge crack growth of mortar plate specimens under uniaxial loading tests[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2019,11(2):300-313. |
| APA | Huang, Zhenghong,Deng, Shouchun,Li, Haibo,&Zuo, Hong.(2019).Edge crack growth of mortar plate specimens under uniaxial loading tests.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,11(2),300-313. |
| MLA | Huang, Zhenghong,et al."Edge crack growth of mortar plate specimens under uniaxial loading tests".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 11.2(2019):300-313. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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