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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概要

• 論文の詳細を見る

• For predicting fatigue life for SPC270 spot welded specimens using the numerical simulation code "FLARP" based on ΔK_<RP>, some material characteristics have been obtained. Young's modulus, tensile strength, yield stress, and elongation are measured for parent material from tensile test. Vickers hardness and residual stress distribution are measured and metallographic structure is observed. The RPG load and fatigue crack growth rate are essential parameters for the simulation code FLARP, since these are obtained from a specimen with an initial crack under cyclic loading. As a result, material parameters C and m are obtained from the relation between crack growth rate da/dn and ΔK_<RP>. Finally, fatigue life curves are obtained for LT and TS specimens, and crack propagation path is investigated.

• 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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