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Wear and impact analysis of granular materials using Discrete Element Method simulations / JAMES THOMPSON

Swansea University Author: JAMES THOMPSON

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DOI (Published version): 10.23889/SUthesis.63751

Abstract

Wear models for abrasion, ductile erosion, brittle erosion and combined erosion are implemented into a Discrete Element Method program utilising the linear spring dashpot model. A linear damage model is developed, implemented and then applied to an industrial case study through which it is found to...

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Published: Swansea, Wales, UK 2023
Institution: Swansea University
Degree level: Doctoral
Degree name: EngD
Supervisor: Brown, Stephen. G. R.
URI: https://cronfa.swan.ac.uk/Record/cronfa63751
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first_indexed 2023-06-29T10:17:48Z
last_indexed 2023-06-29T10:17:48Z
id cronfa63751
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spelling v2 63751 2023-06-29 Wear and impact analysis of granular materials using Discrete Element Method simulations 0234654b14d9f98b6fef54c73f7f7336 JAMES THOMPSON JAMES THOMPSON true false 2023-06-29 Wear models for abrasion, ductile erosion, brittle erosion and combined erosion are implemented into a Discrete Element Method program utilising the linear spring dashpot model. A linear damage model is developed, implemented and then applied to an industrial case study through which it is found to predict wear accurately and provide a good insight into the improvement based on material change using the abrasion models. Four methods of creating energy based modelling were created for specific use inside DEM and contrasted with known wear models to assess what mechanisms they may potentially replicate. Through use with DEM, this allows use with a Single Element Failure criteria which can rapidly assess a variety of material changes inside a system to take steps to de-risk potential industrial trials. Design changes were made to assess the effects on both wear/energy models and provide predictions for causes and possible side effects. The effect of particle kinetics were assessed with respect to angle of impact, mass flow rate and coefficient of restitution to determine how this impacts wear modelling in DEM. E-Thesis Swansea, Wales, UK Discrete Element Method, Computational Analysis, Wear, Damage 27 9 2023 2023-09-27 10.23889/SUthesis.63751 COLLEGE NANME COLLEGE CODE Swansea University Brown, Stephen. G. R. Doctoral EngD Materials and Manufacturing Academy (M2A), TATA Steel and Wall Colmonoy Materials and Manufacturing Academy (M2A), TATA Steel and Wall Colmonoy 2023-10-23T16:04:26.4690234 2023-06-29T11:14:29.6409702 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering JAMES THOMPSON 1 63751__28006__8a82556059b349e1a212c113d559d2e3.pdf 2023_Thompson_J.final.63751.pdf 2023-06-29T11:33:51.2078320 Output 4827339 application/pdf E-Thesis – open access true Copyright: The Author, James Thompson, 2023. true eng
title Wear and impact analysis of granular materials using Discrete Element Method simulations
spellingShingle Wear and impact analysis of granular materials using Discrete Element Method simulations
JAMES THOMPSON
title_short Wear and impact analysis of granular materials using Discrete Element Method simulations
title_full Wear and impact analysis of granular materials using Discrete Element Method simulations
title_fullStr Wear and impact analysis of granular materials using Discrete Element Method simulations
title_full_unstemmed Wear and impact analysis of granular materials using Discrete Element Method simulations
title_sort Wear and impact analysis of granular materials using Discrete Element Method simulations
author_id_str_mv 0234654b14d9f98b6fef54c73f7f7336
author_id_fullname_str_mv 0234654b14d9f98b6fef54c73f7f7336_***_JAMES THOMPSON
author JAMES THOMPSON
author2 JAMES THOMPSON
format E-Thesis
publishDate 2023
institution Swansea University
doi_str_mv 10.23889/SUthesis.63751
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 Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description Wear models for abrasion, ductile erosion, brittle erosion and combined erosion are implemented into a Discrete Element Method program utilising the linear spring dashpot model. A linear damage model is developed, implemented and then applied to an industrial case study through which it is found to predict wear accurately and provide a good insight into the improvement based on material change using the abrasion models. Four methods of creating energy based modelling were created for specific use inside DEM and contrasted with known wear models to assess what mechanisms they may potentially replicate. Through use with DEM, this allows use with a Single Element Failure criteria which can rapidly assess a variety of material changes inside a system to take steps to de-risk potential industrial trials. Design changes were made to assess the effects on both wear/energy models and provide predictions for causes and possible side effects. The effect of particle kinetics were assessed with respect to angle of impact, mass flow rate and coefficient of restitution to determine how this impacts wear modelling in DEM.
published_date 2023-09-27T16:04:27Z
_version_ 1780559084429246464
score 11.01353

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