Development of Self-Piercing Riveted Joint Fracture Model

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Other Title
  • セルフピアッシングリベットの破断モデルの開発
  • セルフピアッシングリベットの破断モデルの開発 : 大規模衝突解析用簡易破断モデルの基礎検討
  • セルフピアッシングリベット ノ ハダンモデル ノ カイハツ : ダイキボ ショウトツ カイセキヨウ カンイハダンモデル ノ キソ ケントウ
  • - Fundamental Study of Simplified Fracture Model for Large Scale Crash Simulation -
  • －大規模衝突解析用簡易破断モデルの基礎検討－

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This paper describes the development of a simplified modeling method to represent fracture of Self-Piercing Riveted (SPR) joints to be used for large scale crash simulation. First, the cross section geometry of the SPR joint was obtained by a 2D simulation of riveting process. Then a detailed 3D SPR model was generated to analyze the fracture mechanism. A simplified SPR model, with shell elements, was developed based on the fracture mechanism. The simplified SPR model well simulated the stress distribution around the joint. The calculated fracture load and fracture mode showed a good correlation with the experimental results.

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