Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container Ship

The aim of this paper is to estimate the influence of the dimensions of the torsion box (height and width), of a 2400 TEU feeder-class container ship, on local stress distribution and assessment of local fatigue strength by using a numerical approach based on the fatigue limit-state and ultimate lim...

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Main Authors: Arturo Silva-Campillo, Francisco Pérez-Arribas
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/10/9/1172
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author Arturo Silva-Campillo
Francisco Pérez-Arribas
author_facet Arturo Silva-Campillo
Francisco Pérez-Arribas
author_sort Arturo Silva-Campillo
collection DOAJ
description The aim of this paper is to estimate the influence of the dimensions of the torsion box (height and width), of a 2400 TEU feeder-class container ship, on local stress distribution and assessment of local fatigue strength by using a numerical approach based on the fatigue limit-state and ultimate limit-state in the midship region. In terms of the fatigue limit-state, the effect of the dimensions of the torsion box is obtained by geometrical modifications, in the connection between the side shell longitudinal stiffeners with the transverse web frame for nine structural details, referring to different arrangements of strengthening elements (brackets and flat bars). The process of comparing the different elements determines the most effective combination. This structural influence on the local stress distribution is assessed, along the longitudinal plates between ordinary stiffeners bounding the perimeter of the torsion box, by calculating the hull girder stresses, local buckling stresses and shear stress distribution induced by vertical and horizontal shear forces, Saint Venant and warping torques, and finally the shear stresses induced by a warping moment. Scantling criteria are obtained allowing for a better design of this very important region in container ships.
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spelling doaj.art-341e906f3ff54c869d7c3746623292a12023-11-23T17:05:54ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-08-01109117210.3390/jmse10091172Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container ShipArturo Silva-Campillo0Francisco Pérez-Arribas1Universidad Politécnica de Madrid, Avenida de la Memoria 4, 28040 Madrid, SpainUniversidad Politécnica de Madrid, Avenida de la Memoria 4, 28040 Madrid, SpainThe aim of this paper is to estimate the influence of the dimensions of the torsion box (height and width), of a 2400 TEU feeder-class container ship, on local stress distribution and assessment of local fatigue strength by using a numerical approach based on the fatigue limit-state and ultimate limit-state in the midship region. In terms of the fatigue limit-state, the effect of the dimensions of the torsion box is obtained by geometrical modifications, in the connection between the side shell longitudinal stiffeners with the transverse web frame for nine structural details, referring to different arrangements of strengthening elements (brackets and flat bars). The process of comparing the different elements determines the most effective combination. This structural influence on the local stress distribution is assessed, along the longitudinal plates between ordinary stiffeners bounding the perimeter of the torsion box, by calculating the hull girder stresses, local buckling stresses and shear stress distribution induced by vertical and horizontal shear forces, Saint Venant and warping torques, and finally the shear stresses induced by a warping moment. Scantling criteria are obtained allowing for a better design of this very important region in container ships.https://www.mdpi.com/2077-1312/10/9/1172torsion boxcontainer shipfatiguehull girder strengthshear stress
spellingShingle Arturo Silva-Campillo
Francisco Pérez-Arribas
Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container Ship
Journal of Marine Science and Engineering
torsion box
container ship
fatigue
hull girder strength
shear stress
title Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container Ship
title_full Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container Ship
title_fullStr Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container Ship
title_full_unstemmed Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container Ship
title_short Effect of the Torsion Box Dimensions on Local Stress Distribution and Fatigue Strength Assessment of a Container Ship
title_sort effect of the torsion box dimensions on local stress distribution and fatigue strength assessment of a container ship
topic torsion box
container ship
fatigue
hull girder strength
shear stress
url https://www.mdpi.com/2077-1312/10/9/1172
work_keys_str_mv AT arturosilvacampillo effectofthetorsionboxdimensionsonlocalstressdistributionandfatiguestrengthassessmentofacontainership
AT franciscoperezarribas effectofthetorsionboxdimensionsonlocalstressdistributionandfatiguestrengthassessmentofacontainership