Floor stiffener cracking in large mining truck dump bodies
Thesis (M.Eng.)--Memorial University of Newfoundland, 2002. Engineering and Applied Science Bibliography: leaf 103 Due to the soft nature of the underfoot conditions in an oil sand mine, mobile equipment tends to develop greater amounts of maintenance problems than similar equipment in other types o...
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ftmemorialunivdc:oai:collections.mun.ca:theses3/88543 2023-05-15T17:23:32+02:00 Floor stiffener cracking in large mining truck dump bodies Whalen, David Donald, 1975- Memorial University of Newfoundland. Faculty of Engineering and Applied Science 2002 ix, 271 leaves : col. ill. Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses3/id/88543 eng eng Electronic Theses and Dissertations (27.49 MB) -- http://collections.mun.ca/PDFs/theses/Whalen_DavidDonald.pdf a1591279 http://collections.mun.ca/cdm/ref/collection/theses3/id/88543 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 Welded joints--Cracking Materials--Fatigue Trucks--Design and construction Text Electronic thesis or dissertation 2002 ftmemorialunivdc 2015-08-06T19:18:45Z Thesis (M.Eng.)--Memorial University of Newfoundland, 2002. Engineering and Applied Science Bibliography: leaf 103 Due to the soft nature of the underfoot conditions in an oil sand mine, mobile equipment tends to develop greater amounts of maintenance problems than similar equipment in other types of mines. This is an investigation into cracking of haul truck dump bodies in oil sand mining service using the Finite Element Method (FEM). This work identifies the damage mechanism and source causing this persistent problem, which occurs at the intersection of the widthwise and lengthwise box-style floor stiffeners. In particular, compressive, membrane stresses are setup at these intersections resulting from overall bending of the floor plate from the weight of the ore. Superimposed onto these membrane stresses are localized bending stresses caused by very slight deflections, or twist, within the frame. Depending on the magnitude of twist, these localized bending stresses can overcome the compressive membrane stress producing sufficient tension to propagate a crack in this as-welded, non-heat-treated connection. 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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ftmemorialunivdc |
language |
English |
topic |
Welded joints--Cracking Materials--Fatigue Trucks--Design and construction |
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Welded joints--Cracking Materials--Fatigue Trucks--Design and construction Whalen, David Donald, 1975- Floor stiffener cracking in large mining truck dump bodies |
topic_facet |
Welded joints--Cracking Materials--Fatigue Trucks--Design and construction |
description |
Thesis (M.Eng.)--Memorial University of Newfoundland, 2002. Engineering and Applied Science Bibliography: leaf 103 Due to the soft nature of the underfoot conditions in an oil sand mine, mobile equipment tends to develop greater amounts of maintenance problems than similar equipment in other types of mines. This is an investigation into cracking of haul truck dump bodies in oil sand mining service using the Finite Element Method (FEM). This work identifies the damage mechanism and source causing this persistent problem, which occurs at the intersection of the widthwise and lengthwise box-style floor stiffeners. In particular, compressive, membrane stresses are setup at these intersections resulting from overall bending of the floor plate from the weight of the ore. Superimposed onto these membrane stresses are localized bending stresses caused by very slight deflections, or twist, within the frame. Depending on the magnitude of twist, these localized bending stresses can overcome the compressive membrane stress producing sufficient tension to propagate a crack in this as-welded, non-heat-treated connection. |
author2 |
Memorial University of Newfoundland. Faculty of Engineering and Applied Science |
format |
Thesis |
author |
Whalen, David Donald, 1975- |
author_facet |
Whalen, David Donald, 1975- |
author_sort |
Whalen, David Donald, 1975- |
title |
Floor stiffener cracking in large mining truck dump bodies |
title_short |
Floor stiffener cracking in large mining truck dump bodies |
title_full |
Floor stiffener cracking in large mining truck dump bodies |
title_fullStr |
Floor stiffener cracking in large mining truck dump bodies |
title_full_unstemmed |
Floor stiffener cracking in large mining truck dump bodies |
title_sort |
floor stiffener cracking in large mining truck dump bodies |
publishDate |
2002 |
url |
http://collections.mun.ca/cdm/ref/collection/theses3/id/88543 |
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 (27.49 MB) -- http://collections.mun.ca/PDFs/theses/Whalen_DavidDonald.pdf a1591279 http://collections.mun.ca/cdm/ref/collection/theses3/id/88543 |
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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1766113113256493056 |