Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation Method
The depth of mineral resources like coal continuously increases due to the exhaustion of shallow resources, and the characteristic of high ground stress in deep ground inevitably affects fracture of rock blasting. Combining with high-speed photography technology, the digital image correlation method...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/4894078 |
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| _version_ | 1850222268568829952 |
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| author | Liyun Yang Chenxi Ding Renshu Yang Zhen Lei Jing Wang |
| author_facet | Liyun Yang Chenxi Ding Renshu Yang Zhen Lei Jing Wang |
| author_sort | Liyun Yang |
| collection | DOAJ |
| description | The depth of mineral resources like coal continuously increases due to the exhaustion of shallow resources, and the characteristic of high ground stress in deep ground inevitably affects fracture of rock blasting. Combining with high-speed photography technology, the digital image correlation method (DIC) is introduced into experimental study on explosive mechanics. And strain evolution process of blasting under high stress condition is obtained by using the model experiment method. The preliminary results show that high stress condition has no obvious effects on the propagation law of blasting stress wave or its stress peak in the medium. In addition, it is found that medium in the “elastic vibration area” by conventional blast zoning is not always “elastic,” and on this basis, the concepts of “plastic area” and “quasielastic area” are put forward. The high stress condition does not influence partition range of above “plastic area” or “quasielastic area,” but in the “plastic area,” the high stress condition decreases both plastic strain value and its decay rate of relevant gauging points. |
| format | Article |
| id | doaj-art-7262a9a7ba9f43fb9d21ec2d8ee3234e |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7262a9a7ba9f43fb9d21ec2d8ee3234e2025-08-20T02:06:23ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/48940784894078Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation MethodLiyun Yang0Chenxi Ding1Renshu Yang2Zhen Lei3Jing Wang4School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaInstitute of Mining Engineering, Guizhou Institute of Technology, Guizhou 550003, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaThe depth of mineral resources like coal continuously increases due to the exhaustion of shallow resources, and the characteristic of high ground stress in deep ground inevitably affects fracture of rock blasting. Combining with high-speed photography technology, the digital image correlation method (DIC) is introduced into experimental study on explosive mechanics. And strain evolution process of blasting under high stress condition is obtained by using the model experiment method. The preliminary results show that high stress condition has no obvious effects on the propagation law of blasting stress wave or its stress peak in the medium. In addition, it is found that medium in the “elastic vibration area” by conventional blast zoning is not always “elastic,” and on this basis, the concepts of “plastic area” and “quasielastic area” are put forward. The high stress condition does not influence partition range of above “plastic area” or “quasielastic area,” but in the “plastic area,” the high stress condition decreases both plastic strain value and its decay rate of relevant gauging points.http://dx.doi.org/10.1155/2018/4894078 |
| spellingShingle | Liyun Yang Chenxi Ding Renshu Yang Zhen Lei Jing Wang Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation Method Shock and Vibration |
| title | Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation Method |
| title_full | Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation Method |
| title_fullStr | Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation Method |
| title_full_unstemmed | Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation Method |
| title_short | Full Field Strain Analysis of Blasting Under High Stress Condition Based on Digital Image Correlation Method |
| title_sort | full field strain analysis of blasting under high stress condition based on digital image correlation method |
| url | http://dx.doi.org/10.1155/2018/4894078 |
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