 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12854 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
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| In English (Mech. Solids): | | 4810 |
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| Xiaobin Yang, Yanyu Pei, Yimin Song, and Hongming Cheng, "A New Digital Speckle Correlation Method for Studying the Dynamic Fracture Parameters of Rocks under an Impact Load," Mech. Solids. 56 (6), 1124-1139 (2021) |
| Year |
2021 |
Volume |
56 |
Number |
6 |
Pages |
1124-1139 |
| DOI |
10.3103/S0025654421060224 |
| Title |
A New Digital Speckle Correlation Method for Studying the Dynamic Fracture Parameters of Rocks under an Impact Load |
| Author(s) |
Xiaobin Yang (China University of Mining & Technology(Beijing), School of Resources and Safety Engineering, Beijing, 100083 China, yangxiaobin02@126.com)
Yanyu Pei (China University of Mining & Technology(Beijing), School of Resources and Safety Engineering, Beijing, 100083 China)
Yimin Song (North China University of Technology, College of Architecture and Civil Engineering, Beijing, 100041 China)
Hongming Cheng (China University of Mining & Technology(Beijing), School of Resources and Safety Engineering, Beijing, 100083 China) |
| Abstract |
In order to study the dynamic fracture behavior of rocks under an impact load with relatively low impact loading speed, a new method, the Node Interpolation Displacement Representation of Digital Speckle Correlation Method (NIDR-DSCM), was established and a new experimental system was developed. The new DSCM method was used to investigate the dynamic crack displacement field and the experimental system was used to control the impact speed and the startup of the collection system. This new DSCM calculation method was developed and a detailed analysis process was designed to investigate no-uniform deformation and rapid crack propagation in rocks under an impact load. Using images taken with an industrial camera and a high-speed camera and the NIDR-DSCM, the deformation field and the displacement field of dynamic fracture process were obtained, and the crack tip location and displacement width of the crack tip were calculated. The results of the experiments indicate that dynamic fracture propagation in rocks under an impact load can be measured using the new DSCM, which can provide basic parameters for engineering design and construction. The measurement method and experimental impact system of this paper can provide a new approach to investigating the dynamic fracture parameters of rocks under complex physical conditions. |
| Keywords |
digital speckle correlation method, node interpolation displacement representation, dynamic fracture, impact load, crack tip |
| Received |
18 December 2018 | Revised |
18 November 2020 | Accepted |
04 March 2021 |
| Link to Fulltext |
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