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Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents

This paper presents the comparison of the influence of single and multiple local dents on the load carrying capacity of steel conical shell subjected to axial compression. Cones were assumed to be made from 0.5 mm mild steel with geometric parameters characterized by: r1/t = 50, r2/r1 = 2.0, L/r2 =...

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Main Authors: Ifayefunmi, Olawale Friday, Mahidan, Fairuz Mardhiah, Abu Bakar, Norinni
Format: Article
Language:English
Published: TJPRC Pvt. Ltd. 2020
Online Access:http://eprints.utem.edu.my/id/eprint/25294/2/BUCKLING%20OF%20AXIALLY%20COMPRESSED%20IMPERFECT%20STEEL%20CONES%20WITH%20LOCAL%20DENTS.PDF
http://eprints.utem.edu.my/id/eprint/25294/
http://www.tjprc.org/publishpapers/2-67-1599637761-1036IJMPERDJUN20201036.pdf
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spelling my.utem.eprints.252942021-09-22T13:24:37Z http://eprints.utem.edu.my/id/eprint/25294/ Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents Ifayefunmi, Olawale Friday Mahidan, Fairuz Mardhiah Abu Bakar, Norinni This paper presents the comparison of the influence of single and multiple local dents on the load carrying capacity of steel conical shell subjected to axial compression. Cones were assumed to be made from 0.5 mm mild steel with geometric parameters characterized by: r1/t = 50, r2/r1 = 2.0, L/r2 = 2.24, β = 12.6°. Result of fourteen test specimens having local dents ranging from 0 to 2 and indent depth of 0.56, 1.12 and 1.68 is presented in the paper with the accompanying numerical results. The results confirm the strong influence of local dents on the buckling load of axial compressed cones. It is clear that increasing the indent depth results in reduction of the cone strength i.e., the larger the imperfection amplitude, the larger the reduction the buckling load of the cone. Furthermore, it can be seen that cone with multiple dents are more sensitive to imperfection as compared to cone with single dents. Lastly, it can be seen that in most cases, for cone having thinness ratio of 50, two local dents on the mid-surface is enough to produce the largest reduction in the load carrying capacity of the shell as evident for imperfection amplitude A = 0.56 and 1.68. However, as the thinness ratio increase (i.e., r1/t = 250), the greatest reduction in the buckling load of the cone is produced by thehighest number of local dents. TJPRC Pvt. Ltd. 2020-06 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/25294/2/BUCKLING%20OF%20AXIALLY%20COMPRESSED%20IMPERFECT%20STEEL%20CONES%20WITH%20LOCAL%20DENTS.PDF Ifayefunmi, Olawale Friday and Mahidan, Fairuz Mardhiah and Abu Bakar, Norinni (2020) Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents. International Journal of Mechanical and Production Engineering Research and Development, 10 (3). pp. 10807-10816. ISSN 2249–6890 http://www.tjprc.org/publishpapers/2-67-1599637761-1036IJMPERDJUN20201036.pdf
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description This paper presents the comparison of the influence of single and multiple local dents on the load carrying capacity of steel conical shell subjected to axial compression. Cones were assumed to be made from 0.5 mm mild steel with geometric parameters characterized by: r1/t = 50, r2/r1 = 2.0, L/r2 = 2.24, β = 12.6°. Result of fourteen test specimens having local dents ranging from 0 to 2 and indent depth of 0.56, 1.12 and 1.68 is presented in the paper with the accompanying numerical results. The results confirm the strong influence of local dents on the buckling load of axial compressed cones. It is clear that increasing the indent depth results in reduction of the cone strength i.e., the larger the imperfection amplitude, the larger the reduction the buckling load of the cone. Furthermore, it can be seen that cone with multiple dents are more sensitive to imperfection as compared to cone with single dents. Lastly, it can be seen that in most cases, for cone having thinness ratio of 50, two local dents on the mid-surface is enough to produce the largest reduction in the load carrying capacity of the shell as evident for imperfection amplitude A = 0.56 and 1.68. However, as the thinness ratio increase (i.e., r1/t = 250), the greatest reduction in the buckling load of the cone is produced by thehighest number of local dents.
format Article
author Ifayefunmi, Olawale Friday
Mahidan, Fairuz Mardhiah
Abu Bakar, Norinni
spellingShingle Ifayefunmi, Olawale Friday
Mahidan, Fairuz Mardhiah
Abu Bakar, Norinni
Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents
author_facet Ifayefunmi, Olawale Friday
Mahidan, Fairuz Mardhiah
Abu Bakar, Norinni
author_sort Ifayefunmi, Olawale Friday
title Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents
title_short Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents
title_full Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents
title_fullStr Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents
title_full_unstemmed Buckling Of Axially Compressed Imperfect Steel Cones With Local Dents
title_sort buckling of axially compressed imperfect steel cones with local dents
publisher TJPRC Pvt. Ltd.
publishDate 2020
url http://eprints.utem.edu.my/id/eprint/25294/2/BUCKLING%20OF%20AXIALLY%20COMPRESSED%20IMPERFECT%20STEEL%20CONES%20WITH%20LOCAL%20DENTS.PDF
http://eprints.utem.edu.my/id/eprint/25294/
http://www.tjprc.org/publishpapers/2-67-1599637761-1036IJMPERDJUN20201036.pdf
_version_ 1713203465355788288
score 13.211869

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