I--- Flow 3d Cast Advanced Crack [hot] Now

| Parameter | Value / Finding | | :--- | :--- | | Alloy | A356 (Al-Si-Mg) | | Mold | Sand + chill | | Crack observed (physical) | Web area near central chill (hot tear) | | Flow-3D CAST prediction | RDG index = 1.4 in same location | | Strain rate at coherency | $3.2 \times 10^-3 s^-1$ (above critical $1.5\times 10^-3$) | | Mitigation simulation (increase chill radius) | RDG index dropped to 0.8 → No crack predicted → Confirmed by trial |

: Activates the thermal stress model to compute stresses simultaneously in the solidifying metal and the mold. i--- Flow 3d Cast Advanced Crack