Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions
Scientific drilling in polar regions plays a crucial role in obtaining ice cores and using them to understand climate change and to study the dynamics of polar ice sheets and their impact on global environmental changes (sea level, ocean current cycle, atmospheric circulation, etc.). Mechanical rota...
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ftdoajarticles:oai:doaj.org/article:b4dba71be9014f63916ad847d03a2e0f 2024-09-15T18:11:59+00:00 Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions X. Lv Z. Cui T. Wang Y. Wen A. Liu R. Wang 2024-07-01T00:00:00Z https://doi.org/10.5194/tc-18-3351-2024 https://doaj.org/article/b4dba71be9014f63916ad847d03a2e0f EN eng Copernicus Publications https://tc.copernicus.org/articles/18/3351/2024/tc-18-3351-2024.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-18-3351-2024 1994-0416 1994-0424 https://doaj.org/article/b4dba71be9014f63916ad847d03a2e0f The Cryosphere, Vol 18, Pp 3351-3362 (2024) Environmental sciences GE1-350 Geology QE1-996.5 article 2024 ftdoajarticles https://doi.org/10.5194/tc-18-3351-2024 2024-08-05T17:48:52Z Scientific drilling in polar regions plays a crucial role in obtaining ice cores and using them to understand climate change and to study the dynamics of polar ice sheets and their impact on global environmental changes (sea level, ocean current cycle, atmospheric circulation, etc.). Mechanical rotary cutting is a widely used drilling method that drives the cutter to rotate to cut and drill through ice layers. It is necessary to conduct in-depth research on the brittle fracture behavior of ice and mechanical model and to analyze the factors and specific mechanisms (cutter's angle, rotation speed of the drill bit, and cutting depth) affecting cutting force for the rational design of ice core drill systems, improving the efficiency of ice core drilling and ensuring the drilling process runs smoothly. Therefore, in this paper, the process of ice cutting was observed, the fracture mechanics characteristics of the ice cutting process were analyzed, the formation process of ice chips was divided into three stages, and a mathematical model for the cutting force was established based on the observation results. The paper describes the damage conditions of ice failure and points out the factors and specific laws influencing cutting force. Furthermore, the cutting force generated under various experimental conditions was tested. Based on specified real-time variation curves of cutting force, the characteristics of cutting force were analyzed during the cutting and drilling process. Based on comparison to results of the average cutting force, the influence mechanism of various parameters acting on the cutting force was obtained. This proves the correctness of the mathematical model of the cutting force and provides a theoretical reference for the calculation of the cutting force during ice cutting and drilling in polar regions. Article in Journal/Newspaper ice core The Cryosphere Directory of Open Access Journals: DOAJ Articles The Cryosphere 18 7 3351 3362 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
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Environmental sciences GE1-350 Geology QE1-996.5 X. Lv Z. Cui T. Wang Y. Wen A. Liu R. Wang Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Scientific drilling in polar regions plays a crucial role in obtaining ice cores and using them to understand climate change and to study the dynamics of polar ice sheets and their impact on global environmental changes (sea level, ocean current cycle, atmospheric circulation, etc.). Mechanical rotary cutting is a widely used drilling method that drives the cutter to rotate to cut and drill through ice layers. It is necessary to conduct in-depth research on the brittle fracture behavior of ice and mechanical model and to analyze the factors and specific mechanisms (cutter's angle, rotation speed of the drill bit, and cutting depth) affecting cutting force for the rational design of ice core drill systems, improving the efficiency of ice core drilling and ensuring the drilling process runs smoothly. Therefore, in this paper, the process of ice cutting was observed, the fracture mechanics characteristics of the ice cutting process were analyzed, the formation process of ice chips was divided into three stages, and a mathematical model for the cutting force was established based on the observation results. The paper describes the damage conditions of ice failure and points out the factors and specific laws influencing cutting force. Furthermore, the cutting force generated under various experimental conditions was tested. Based on specified real-time variation curves of cutting force, the characteristics of cutting force were analyzed during the cutting and drilling process. Based on comparison to results of the average cutting force, the influence mechanism of various parameters acting on the cutting force was obtained. This proves the correctness of the mathematical model of the cutting force and provides a theoretical reference for the calculation of the cutting force during ice cutting and drilling in polar regions. |
format |
Article in Journal/Newspaper |
author |
X. Lv Z. Cui T. Wang Y. Wen A. Liu R. Wang |
author_facet |
X. Lv Z. Cui T. Wang Y. Wen A. Liu R. Wang |
author_sort |
X. Lv |
title |
Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions |
title_short |
Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions |
title_full |
Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions |
title_fullStr |
Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions |
title_full_unstemmed |
Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions |
title_sort |
research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/tc-18-3351-2024 https://doaj.org/article/b4dba71be9014f63916ad847d03a2e0f |
genre |
ice core The Cryosphere |
genre_facet |
ice core The Cryosphere |
op_source |
The Cryosphere, Vol 18, Pp 3351-3362 (2024) |
op_relation |
https://tc.copernicus.org/articles/18/3351/2024/tc-18-3351-2024.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-18-3351-2024 1994-0416 1994-0424 https://doaj.org/article/b4dba71be9014f63916ad847d03a2e0f |
op_doi |
https://doi.org/10.5194/tc-18-3351-2024 |
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The Cryosphere |
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