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Numerical modelling of localised thinning processes for packaging steels. / Michael Fieldhouse

Swansea University Author: Michael Fieldhouse

Abstract

With the European Union putting pressure on companies within the packaging chain to recycle, cheap and readily available packaging materials are highly in demand. Steel is the most recycled packaging material and to keep it there research continues in this area. More recently research has switch fro...

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Published: 2012
Institution: Swansea University
Degree level: Doctoral
Degree name: EngD
URI: https://cronfa.swan.ac.uk/Record/cronfa42330
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first_indexed 2018-08-02T18:54:27Z
last_indexed 2018-08-03T10:09:52Z
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spelling 2018-08-02T16:24:28.8541953 v2 42330 2018-08-02 Numerical modelling of localised thinning processes for packaging steels. 7c269f5db1d85333edfcf9e97c6fc257 NULL Michael Fieldhouse Michael Fieldhouse true true 2018-08-02 With the European Union putting pressure on companies within the packaging chain to recycle, cheap and readily available packaging materials are highly in demand. Steel is the most recycled packaging material and to keep it there research continues in this area. More recently research has switch from developing and altering tooling to fit certain materials, to developing improved materials for a given manufacturing process, steel can production for example. This has lead to the desire to understand how materials behave under different forming conditions. The solution which would best suit packaging manufacturing companies would be, knowing the material properties, to develop a numerical model which would be able to predict how the material would perform under different forming conditions. This model could be used as an aid to see which new materials should be further developed. To measure these different forming conditions a forming limit diagram is used. A forming limit diagram shows how a material can perform under altering forming conditions, from uniaxial through plane to biaxial strain. Before a model can be produced though, experimental results are needed to validate the model. The current International Standard 12004-2, which is used to produce a forming limit diagram, does not allow materials under a certain thickness. Almost all packaging steel grades are thinner and have proven difficult to obtain reliable results. This thesis outlines the development of a simplified experimental test which is used to measure strain path dependant failure limits of several packaging steels. These results are then used then to generate a computer model in which the different strain conditions can be closely matched to the experiment test method. E-Thesis Materials science.;Packaging. 31 12 2012 2012-12-31 COLLEGE NANME Engineering COLLEGE CODE Swansea University Doctoral EngD 2018-08-02T16:24:28.8541953 2018-08-02T16:24:28.8541953 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Michael Fieldhouse NULL 1 0042330-02082018162445.pdf 10798038.pdf 2018-08-02T16:24:45.9530000 Output 22341694 application/pdf E-Thesis true 2018-08-02T16:24:45.9530000 false
title Numerical modelling of localised thinning processes for packaging steels.
spellingShingle Numerical modelling of localised thinning processes for packaging steels.
Michael Fieldhouse
title_short Numerical modelling of localised thinning processes for packaging steels.
title_full Numerical modelling of localised thinning processes for packaging steels.
title_fullStr Numerical modelling of localised thinning processes for packaging steels.
title_full_unstemmed Numerical modelling of localised thinning processes for packaging steels.
title_sort Numerical modelling of localised thinning processes for packaging steels.
author_id_str_mv 7c269f5db1d85333edfcf9e97c6fc257
author_id_fullname_str_mv 7c269f5db1d85333edfcf9e97c6fc257_***_Michael Fieldhouse
author Michael Fieldhouse
author2 Michael Fieldhouse
format E-Thesis
publishDate 2012
institution Swansea University
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 - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description With the European Union putting pressure on companies within the packaging chain to recycle, cheap and readily available packaging materials are highly in demand. Steel is the most recycled packaging material and to keep it there research continues in this area. More recently research has switch from developing and altering tooling to fit certain materials, to developing improved materials for a given manufacturing process, steel can production for example. This has lead to the desire to understand how materials behave under different forming conditions. The solution which would best suit packaging manufacturing companies would be, knowing the material properties, to develop a numerical model which would be able to predict how the material would perform under different forming conditions. This model could be used as an aid to see which new materials should be further developed. To measure these different forming conditions a forming limit diagram is used. A forming limit diagram shows how a material can perform under altering forming conditions, from uniaxial through plane to biaxial strain. Before a model can be produced though, experimental results are needed to validate the model. The current International Standard 12004-2, which is used to produce a forming limit diagram, does not allow materials under a certain thickness. Almost all packaging steel grades are thinner and have proven difficult to obtain reliable results. This thesis outlines the development of a simplified experimental test which is used to measure strain path dependant failure limits of several packaging steels. These results are then used then to generate a computer model in which the different strain conditions can be closely matched to the experiment test method.
published_date 2012-12-31T03:52:56Z
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score 10.936898

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