Journal article 990 views
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method
International Journal of Computational Methods, Start page: 1843008
Swansea University Author: Yuntian Feng
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DOI (Published version): 10.1142/S0219876218430089
Abstract
The grinding mechanism is the base of developing new precision machining technology, especially for brittle materials including ceramics. In previous work, many results were gained from single grit cutting model in which a grit is in contact continuously with a workpiece, similar to the indentation...
Published in: | International Journal of Computational Methods |
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ISSN: | 0219-8762 1793-6969 |
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2018
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URI: | https://cronfa.swan.ac.uk/Record/cronfa40081 |
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2018-08-17T14:00:13.3592348 v2 40081 2018-05-10 Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method d66794f9c1357969a5badf654f960275 0000-0002-6396-8698 Yuntian Feng Yuntian Feng true false 2018-05-10 ACEM The grinding mechanism is the base of developing new precision machining technology, especially for brittle materials including ceramics. In previous work, many results were gained from single grit cutting model in which a grit is in contact continuously with a workpiece, similar to the indentation or scratching process, to model the material remove in grinding processing. However, the abrasives are distributed randomly on the surface of the grinding wheel, and they will impact the workpiece periodically in the grinding process. In this study, the discrete element method was introduced to simulate the mechanics behavior of Al2O3 ceramic. The model was validated by simulating indentation test. Both linear scratching test and pendulum scratching test have been simulated in this paper to model the grinding process. The cracks initiation and propagation were also investigated. This study has demonstrated that we should pay close attention to pendulum scratching test to explore the grinding mechanism, and concentrate on cracks initiation and propagation. Journal Article International Journal of Computational Methods 1843008 0219-8762 1793-6969 Discrete element method; grinding mechanism; ceramics; scratching test 23 4 2018 2018-04-23 10.1142/S0219876218430089 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University 2018-08-17T14:00:13.3592348 2018-05-10T09:07:21.7322930 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Yuanqiang Tan 1 Cong Zhang 2 Shengqiang Jiang 3 Y. T. Feng 4 Yuntian Feng 0000-0002-6396-8698 5 |
title |
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method |
spellingShingle |
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method Yuntian Feng |
title_short |
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method |
title_full |
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method |
title_fullStr |
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method |
title_full_unstemmed |
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method |
title_sort |
Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method |
author_id_str_mv |
d66794f9c1357969a5badf654f960275 |
author_id_fullname_str_mv |
d66794f9c1357969a5badf654f960275_***_Yuntian Feng |
author |
Yuntian Feng |
author2 |
Yuanqiang Tan Cong Zhang Shengqiang Jiang Y. T. Feng Yuntian Feng |
format |
Journal article |
container_title |
International Journal of Computational Methods |
container_start_page |
1843008 |
publishDate |
2018 |
institution |
Swansea University |
issn |
0219-8762 1793-6969 |
doi_str_mv |
10.1142/S0219876218430089 |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
department_str |
School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering |
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description |
The grinding mechanism is the base of developing new precision machining technology, especially for brittle materials including ceramics. In previous work, many results were gained from single grit cutting model in which a grit is in contact continuously with a workpiece, similar to the indentation or scratching process, to model the material remove in grinding processing. However, the abrasives are distributed randomly on the surface of the grinding wheel, and they will impact the workpiece periodically in the grinding process. In this study, the discrete element method was introduced to simulate the mechanics behavior of Al2O3 ceramic. The model was validated by simulating indentation test. Both linear scratching test and pendulum scratching test have been simulated in this paper to model the grinding process. The cracks initiation and propagation were also investigated. This study has demonstrated that we should pay close attention to pendulum scratching test to explore the grinding mechanism, and concentrate on cracks initiation and propagation. |
published_date |
2018-04-23T04:28:35Z |
_version_ |
1821378311071203328 |
score |
11.3749895 |