基于FEM法的矫直压下量与锆合金性能研究

Study on Properties of Zriconium alloy and levelling Reduction based on FEM

本文基于有限元法(FEM)研究高温矫直压下量对锆合金棒材等效应力、微区温度和材料流动最大速度的影响。结果表明:随着压下量逐渐增大,Zr-4棒材中间区域所受的等效应力和最大等效应力的区域逐渐增大,Zr-4棒材与矫直辊接触的微区温度降低,温降面积增大,Zr-4棒材材料流动最大速度由中间区域变为右侧区域。

Based on the finite element method (FEM), the effects of the amount of leveling pressure on the equivalent stress of zirconium alloy bars, microzone temperature and the maximum velocity of material flow were studied. The results showed that as the pressure drop gradually increases, the area of equivalent stress and maximum equivalent stress in the middle area of zr-4 bar gradually increased, the temperature in the micro area where zr-4 bar met the straightening roller decreased, the temperature drop area increased, and the maximum flow speed of zr-4 bar material changed from the middle area to the right area.