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    Behavior of Unstiffened and Stiffened Steel Tubular T-Joints

    Source: Journal of Offshore Mechanics and Arctic Engineering:;1989:;volume( 111 ):;issue: 001::page 56
    Author:
    G. Raghava
    ,
    A. G. M. Rao
    ,
    D. S. R. Murthy
    DOI: 10.1115/1.3257139
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Offshore towers standing in deep sea are susceptible to cyclic nature of wave forces. Fatigue failure initiates at the welded tubular joints of these structures where a very high stress gradient and localized stress concentration exist due to abrupt changes in the geometry. Stress concentration plays a vital role in the design of steel tubular joints, as it directly affects the fatigue life of the structures. This paper presents results of an experimental study on the behavior of an unstiffened and a stiffened steel tubular welded T-joint under axial brace loading. The effect of internal ring stiffeners has been studied theoretically and experimentally. In the experimental technique, the specimens were extensively strain-gaged and the stress distribution determined under static load. The analytical results have been obtained by finite element technique.
    keyword(s): Steel , Stress concentration , Tubular joints , Stress , Ocean engineering , Seas , Wave forces , Fatigue failure , Bracing (Construction) , Design , Finite element analysis , Fatigue life , Geometry AND Gradients ,
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      Behavior of Unstiffened and Stiffened Steel Tubular T-Joints

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/105830
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    • Journal of Offshore Mechanics and Arctic Engineering

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    contributor authorG. Raghava
    contributor authorA. G. M. Rao
    contributor authorD. S. R. Murthy
    date accessioned2017-05-08T23:30:45Z
    date available2017-05-08T23:30:45Z
    date copyrightFebruary, 1989
    date issued1989
    identifier issn0892-7219
    identifier otherJMOEEX-28056#56_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/105830
    description abstractOffshore towers standing in deep sea are susceptible to cyclic nature of wave forces. Fatigue failure initiates at the welded tubular joints of these structures where a very high stress gradient and localized stress concentration exist due to abrupt changes in the geometry. Stress concentration plays a vital role in the design of steel tubular joints, as it directly affects the fatigue life of the structures. This paper presents results of an experimental study on the behavior of an unstiffened and a stiffened steel tubular welded T-joint under axial brace loading. The effect of internal ring stiffeners has been studied theoretically and experimentally. In the experimental technique, the specimens were extensively strain-gaged and the stress distribution determined under static load. The analytical results have been obtained by finite element technique.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleBehavior of Unstiffened and Stiffened Steel Tubular T-Joints
    typeJournal Paper
    journal volume111
    journal issue1
    journal titleJournal of Offshore Mechanics and Arctic Engineering
    identifier doi10.1115/1.3257139
    journal fristpage56
    journal lastpage60
    identifier eissn1528-896X
    keywordsSteel
    keywordsStress concentration
    keywordsTubular joints
    keywordsStress
    keywordsOcean engineering
    keywordsSeas
    keywordsWave forces
    keywordsFatigue failure
    keywordsBracing (Construction)
    keywordsDesign
    keywordsFinite element analysis
    keywordsFatigue life
    keywordsGeometry AND Gradients
    treeJournal of Offshore Mechanics and Arctic Engineering:;1989:;volume( 111 ):;issue: 001
    contenttypeFulltext
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