ノッチを有する鋼材の弾塑性状態に対するミクロボイドの影響 : 鉄骨接合部の応力・ひずみ状態 その3  [in Japanese] EFFECT OF MICRO VOIDS ON ELASTIC-PLASTIC STATES OF NOTCHED STEELS : Stress-strain states at steel connections Part 3  [in Japanese]

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Author(s)

Abstract

Brittle fracture of structural steel for building use, in general, is triggered by a ductile crack initiated at notched surface after undergoing a noticeable amount of plastic strain. The initiation of the ductile crack correlates to the triaxial states of stress and plastic strain in the notched section. As stress triaxiality and plastic strain are usually derived from finite element analysis, two material models with voids (Gurson-Tvergaard-Needleman model) and without voids are compared in this study. The results show that the effect of micro voids on elastic-plastic states of notched steels is small until ultimate strength. Furthermore, it is clarified that prediction of ductile crack can also be done well without consideration of voids.

Journal

  • Journal of Structural and Construction Engineering (Transactions of AIJ)

    Journal of Structural and Construction Engineering (Transactions of AIJ) (625), 449-455, 2008-03-30

    Architectural Institute of Japan

References:  14

Cited by:  1

Codes

  • NII Article ID (NAID)
    110006647749
  • NII NACSIS-CAT ID (NCID)
    AN10438559
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    13404202
  • NDL Article ID
    9409003
  • NDL Source Classification
    ZN1(科学技術--建設工学・建設業)
  • NDL Call No.
    Z16-1419
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE  AIJ 
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