SPH法によるひけ巣解析手法の検討

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タイトル別名
  • Application of SPH to Predict Shrinkage Cavity in Castings
  • SPHホウ ニ ヨル ヒケ ソウ カイセキ シュホウ ノ ケントウ

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<p>  Presently, mesh-dependent CAE methods such as FDM and FEM are used to predict forming shrinkage cavities in castings. However, it is known that shrinkage and coupled feeding processes are difficult to analyze by conventional mesh-based methods. Smoothed Particle Hydrodynamics is a mesh-free Lagrangian method that is capable of further modeling the phase transition and solidification of a material in the solidification phase for analyzing the sizes and figures of cavities developed in casting products with high accuracy. In this study, a solidification model was employed to deal with the change in material density from fluid state to solid state. Density flow analysis was performed to take into account the mass transfer occurring in the fluid phase and congelation phase. Using this proposed method, the sizes and figures of shrinkage cavities were obtained in detail. However, it was found that there is a need to enhance the accuracy of the results comparing with experimental results.</p>

収録刊行物

  • 鋳造工学

    鋳造工学 92 (6), 278-284, 2020-06-25

    公益社団法人 日本鋳造工学会

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