Damage Evolution of Granite under Ultrasonic Vibration with Different Amplitudes
As a type of ultra-high frequency loading, ultrasonic vibration is an effective way to break the rock at high rates. Exploring the influence of various factors on the loading effect is essential for its effective application to assist drilling. In this study, the damage evolution of granite under ul...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/8975797 |
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| _version_ | 1832563100619898880 |
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| author | Junpeng Han Dajun Zhao Shulei Zhang Yu Zhou |
| author_facet | Junpeng Han Dajun Zhao Shulei Zhang Yu Zhou |
| author_sort | Junpeng Han |
| collection | DOAJ |
| description | As a type of ultra-high frequency loading, ultrasonic vibration is an effective way to break the rock at high rates. Exploring the influence of various factors on the loading effect is essential for its effective application to assist drilling. In this study, the damage evolution of granite under ultrasonic vibration with different amplitudes was investigated. The theoretical and numerical simulation models of rock breaking by ultrasonic vibration were established. The research group applied ultrasonic vibration loading to granite using different amplitudes. The damage characteristics were tested by NMR experiment, and the damage evolution was numerical analyzed by Particle Flow Code software. The result shows that the propagation of cracks is positively correlated with the amplitude of ultrasonic vibration. The increase of amplitude magnifies the generation of transverse cracks, which is conducive to the stripping of rock fragments. A threshold value was found for the amplitude, and fractures show different propagation and expansion characteristics at the higher and lower values. Increasing the amplitude magnifies the stress at the crystal defect and speeds up the crack propagation process. The stress wave generated by ultrasonic vibration inside the rock will attenuate with the increase in depth. Increasing the amplitude value will amplify the stress in the influence area, and decrease the size of the area. |
| format | Article |
| id | doaj-art-8558313cc2374abd8e9ceca5eba77bf9 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-8558313cc2374abd8e9ceca5eba77bf92025-02-03T01:21:02ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/8975797Damage Evolution of Granite under Ultrasonic Vibration with Different AmplitudesJunpeng Han0Dajun Zhao1Shulei Zhang2Yu Zhou3College of Construction EngineeringCollege of Construction EngineeringYellow River SurveyShaoxing UniversityAs a type of ultra-high frequency loading, ultrasonic vibration is an effective way to break the rock at high rates. Exploring the influence of various factors on the loading effect is essential for its effective application to assist drilling. In this study, the damage evolution of granite under ultrasonic vibration with different amplitudes was investigated. The theoretical and numerical simulation models of rock breaking by ultrasonic vibration were established. The research group applied ultrasonic vibration loading to granite using different amplitudes. The damage characteristics were tested by NMR experiment, and the damage evolution was numerical analyzed by Particle Flow Code software. The result shows that the propagation of cracks is positively correlated with the amplitude of ultrasonic vibration. The increase of amplitude magnifies the generation of transverse cracks, which is conducive to the stripping of rock fragments. A threshold value was found for the amplitude, and fractures show different propagation and expansion characteristics at the higher and lower values. Increasing the amplitude magnifies the stress at the crystal defect and speeds up the crack propagation process. The stress wave generated by ultrasonic vibration inside the rock will attenuate with the increase in depth. Increasing the amplitude value will amplify the stress in the influence area, and decrease the size of the area.http://dx.doi.org/10.1155/2022/8975797 |
| spellingShingle | Junpeng Han Dajun Zhao Shulei Zhang Yu Zhou Damage Evolution of Granite under Ultrasonic Vibration with Different Amplitudes Shock and Vibration |
| title | Damage Evolution of Granite under Ultrasonic Vibration with Different Amplitudes |
| title_full | Damage Evolution of Granite under Ultrasonic Vibration with Different Amplitudes |
| title_fullStr | Damage Evolution of Granite under Ultrasonic Vibration with Different Amplitudes |
| title_full_unstemmed | Damage Evolution of Granite under Ultrasonic Vibration with Different Amplitudes |
| title_short | Damage Evolution of Granite under Ultrasonic Vibration with Different Amplitudes |
| title_sort | damage evolution of granite under ultrasonic vibration with different amplitudes |
| url | http://dx.doi.org/10.1155/2022/8975797 |
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