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Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy.
Thesis (MEng)--University of Pretoria, 2017.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2018
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| _version_ | 1867613482558423040 |
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| access_status_str | Open Access |
| author2 | Stumpf, Waldo E. |
| author_browse | Stumpf, Waldo E. |
| author_facet | Stumpf, Waldo E. |
| collection | Thesis |
| dc_rights_str_mv | © 2018 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Thesis (MEng)--University of Pretoria, 2017. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/64044 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:36:51.203Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/64044 Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy. Stumpf, Waldo E. jacques@structakonsult.co.za Bester, Jacques Ballistic testing UCTD Engineering, built environment and information technology theses SDG-08 Engineering, built environment and information technology theses SDG-09 Engineering, built environment and information technology theses SDG-12 Engineering, built environment and information technology theses SDG-16 Thesis (MEng)--University of Pretoria, 2017. The ballistic performance was investigated with rigorous testing of the new armor steel alloy, a tempered variant and a benchmark material. Mechanical testing included Hopkinson pressure bar tests, high temperature, notched tests and standard quasi-static tensile tests. The combination of a commercial prototype cast steel and ballistic testing with NATO standard soft projectiles allowed a uniquely practical perspective when comparing results. The ballistic test procedure reported the same minimum thickness values, for STANAG level 1 kinetic energy threats, than the suggested values of the manufacturer and comparison to the new alloy was thus established. Dynamic material characterization is only accurate within the testing range. Using a single material model to predict critical strength and failure over large strain-rate and temperature ranges is only possible if the material response is consistent. A few scaling problems during specimen testing resulted in a challenging data set with subsequent numerical characterization difficulty. Ballistic performance was however found to correlate well with high strain-rate tensile tests. mi2026 Materials Science and Metallurgical Engineering MEng Unrestricted SDG-08: Decent work and economic growth SDG-09: Industry, innovation and infrastructure SDG-12: Responsible consumption and production SDG-16: Peace, justice and strong institutions 2018-02-22T10:12:35Z 2018-02-22T10:12:35Z 2018-04-19 2017 Thesis Bester, J 2017, Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy., MEng Thesis, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/64044> http://hdl.handle.net/2263/64044 en © 2018 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Ballistic testing UCTD Engineering, built environment and information technology theses SDG-08 Engineering, built environment and information technology theses SDG-09 Engineering, built environment and information technology theses SDG-12 Engineering, built environment and information technology theses SDG-16 Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy. |
| title | Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy. |
| title_full | Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy. |
| title_fullStr | Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy. |
| title_full_unstemmed | Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy. |
| title_short | Ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy. |
| title_sort | ballistic and dynamic mechanical characterisation of 5t prototype cast of a new locally developed armour steel alloy |
| topic | Ballistic testing UCTD Engineering, built environment and information technology theses SDG-08 Engineering, built environment and information technology theses SDG-09 Engineering, built environment and information technology theses SDG-12 Engineering, built environment and information technology theses SDG-16 |
| url | http://hdl.handle.net/2263/64044 |