自動車用リベット継ぎ手の予ひずみ量の推定および疲労強度評価  [in Japanese] Estimation of Pre-strain Level and Evaluation of Fatigue Strength for Automotive Rivet Joint  [in Japanese]

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Abstract

本研究では,セルフピアスリベット(SPR)接合部の塑性変形(予ひずみ)量をインデンテーション法により推定するとともに,予ひずみを与えたSPR本体および母材である板材の疲労試験を行い,疲労強度に及ぼす予ひずみの影響を明らかにするとともに,SPR接合部の疲労強度を検討した.

True stress-strain curves of SPR and base materials were estimated by dual indenter method, and pre-strain levels of SPR and base materials were determined by the estimated stress-strain curves. Pre-strained specimens were prepared and conducted fatigue tests. Stress distribution of the SPR and its joints were analyzed by FEM, and fatigue strengths of SPR itself and SPR joints were correlated. Next, fatigue tests of base materials were conducted for 0 % and 10 % pre-strained materials. The results demonstrated that the fatigue strengths became similar by the pre-strain for different strength base materials.

Journal

  • Transactions of Society of Automotive Engineers of Japan

    Transactions of Society of Automotive Engineers of Japan 45(3), 589-595, 2014

    Society of Automotive Engineers of Japan

Codes

  • NII Article ID (NAID)
    130006319379
  • NII NACSIS-CAT ID (NCID)
    AN00105913
  • Text Lang
    JPN
  • ISSN
    0287-8321
  • NDL Article ID
    025590944
  • NDL Call No.
    Z16-1092
  • Data Source
    NDL  J-STAGE 
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