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Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method

Yuanqiang Tan, Cong Zhang, Shengqiang Jiang, Y. T. Feng, Yuntian Feng Orcid Logo

International Journal of Computational Methods, Start page: 1843008

Swansea University Author: Yuntian Feng Orcid Logo

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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...

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Published in: International Journal of Computational Methods
ISSN: 0219-8762 1793-6969
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa40081
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first_indexed 2018-05-10T13:49:33Z
last_indexed 2018-08-17T14:51:18Z
id cronfa40081
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spelling 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 CIVL 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 Civil Engineering COLLEGE CODE CIVL 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
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title 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
document_store_str 0
active_str 0
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 2018-04-23T03:51:00Z
_version_ 1763752500883619840
score 11.013776

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