Fitness for service assessment of liquid storage tanks
Thesis (M.Eng.)--Memorial University of Newfoundland, 2010. Engineering and Applied Sciences Includes bibliographical references (leaves 107-113) Storage tanks are widely used in industrial applications in order to store liquid products. Corrosion damage, which is generally termed as locally thinned...
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ftmemorialunivdc:oai:collections.mun.ca:theses4/49282 2023-05-15T17:23:33+02:00 Fitness for service assessment of liquid storage tanks Ahmad, Forhad. Memorial University of Newfoundland. Faculty of Engineering and Applied Sciences 2009 xiii, 141 leaves : ill. (some col.) Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses4/id/49282 Eng eng Electronic Theses and Dissertations (11.78 MB) -- http://collections.mun.ca/PDFs/theses/Ahmad_Forhad.pdf a3295624 http://collections.mun.ca/cdm/ref/collection/theses4/id/49282 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Storage tanks--Corrosion--Measurement Text Electronic thesis or dissertation 2009 ftmemorialunivdc 2015-08-06T19:21:57Z Thesis (M.Eng.)--Memorial University of Newfoundland, 2010. Engineering and Applied Sciences Includes bibliographical references (leaves 107-113) Storage tanks are widely used in industrial applications in order to store liquid products. Corrosion damage, which is generally termed as locally thinned area (LTA), is considered to be a serious threat to the structural integrity of the industrial storage tanks. Therefore, fitness-for-service (FFS) assessment of these structures needs to be performed periodically in order to ensure the operational safety and structural integrity. -- In the present work, the Remaining Strength Factor (RSF) is chosen to quantify corrosion damage. Two alternative methods are proposed for FFS assessment of industrial storage tanks undergoing corrosion damage. The methods are based on the variational concepts in plasticity, the m-alpha tangent multiplier, the concept of elastic decay lengths and the idea of reference volume. The proposed methods are shown to give conservative assessment of the remaining strength of storage tanks developing LTA during operation. The methods are demonstrated through an example, and the results are verified by inelastic finite element analysis. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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English |
topic |
Storage tanks--Corrosion--Measurement |
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Storage tanks--Corrosion--Measurement Ahmad, Forhad. Fitness for service assessment of liquid storage tanks |
topic_facet |
Storage tanks--Corrosion--Measurement |
description |
Thesis (M.Eng.)--Memorial University of Newfoundland, 2010. Engineering and Applied Sciences Includes bibliographical references (leaves 107-113) Storage tanks are widely used in industrial applications in order to store liquid products. Corrosion damage, which is generally termed as locally thinned area (LTA), is considered to be a serious threat to the structural integrity of the industrial storage tanks. Therefore, fitness-for-service (FFS) assessment of these structures needs to be performed periodically in order to ensure the operational safety and structural integrity. -- In the present work, the Remaining Strength Factor (RSF) is chosen to quantify corrosion damage. Two alternative methods are proposed for FFS assessment of industrial storage tanks undergoing corrosion damage. The methods are based on the variational concepts in plasticity, the m-alpha tangent multiplier, the concept of elastic decay lengths and the idea of reference volume. The proposed methods are shown to give conservative assessment of the remaining strength of storage tanks developing LTA during operation. The methods are demonstrated through an example, and the results are verified by inelastic finite element analysis. |
author2 |
Memorial University of Newfoundland. Faculty of Engineering and Applied Sciences |
format |
Thesis |
author |
Ahmad, Forhad. |
author_facet |
Ahmad, Forhad. |
author_sort |
Ahmad, Forhad. |
title |
Fitness for service assessment of liquid storage tanks |
title_short |
Fitness for service assessment of liquid storage tanks |
title_full |
Fitness for service assessment of liquid storage tanks |
title_fullStr |
Fitness for service assessment of liquid storage tanks |
title_full_unstemmed |
Fitness for service assessment of liquid storage tanks |
title_sort |
fitness for service assessment of liquid storage tanks |
publishDate |
2009 |
url |
http://collections.mun.ca/cdm/ref/collection/theses4/id/49282 |
genre |
Newfoundland studies University of Newfoundland |
genre_facet |
Newfoundland studies University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (11.78 MB) -- http://collections.mun.ca/PDFs/theses/Ahmad_Forhad.pdf a3295624 http://collections.mun.ca/cdm/ref/collection/theses4/id/49282 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
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