S0305-2-2 SPC270材のスポット溶接における疲労寿命解析([S0305-2]継手・切欠き)

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概要

• 論文の詳細を見る

• The "FLARP" numerical fatigue crack initiation and propagation simulation code has been applied to the fatigue test of spot-welded SPC270 steel TS and LT specimen. To obtain accurate stress range and residual stress along the assumed crack path, finite element analyses are employed, in which the variation of the yield stress for base, HAZ, and nugget material is considered in detail. The finite element models are also contributed to obtain the relation between crack depth and stress intensity factor of a surface crack propagating along the spot nugget and one that appears on the back surface. The simulation results with well-identified input parameters using measurement value are compatible with the real fatigue test result, which shows that the simulation code is valid for predicting S-N curve of the given specimens.

• 一般社団法人日本機械学会の論文
• 2010-09-04

著者

• 深尾 英邦

  Ttdc

• 澤 紀彦

  トヨタ

• 和田 眞禎

  TTDC

関連論文

• S0305-2-2 SPC270材のスポット溶接における疲労寿命解析([S0305-2]継手・切欠き)
• S0305-2-1 SPC270材のスポット溶接における疲労き裂伝播挙動の計測([S0305-2]継手・切欠き)

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