论文部分内容阅读
利用Solid Works建立板坯定宽几何模型,并在非线性大变形有限元分析软件ANSYS/LS-DYNA中系统的模拟了板坯定宽全过程,研究了板坯在不同侧压区域的侧压冲击力及应力状态变化规律,对比了相同规格板坯在不同侧压量下及不同规格板坯在相同侧压量下的模拟结果。结果表明:板坯头尾部是非稳定变形区,板坯中部是稳定变形区;板坯侧压冲击力、板坯应力以及截面狗骨高度都随侧压量的增加而增大;板坯厚度与冲击力和狗骨高度成正比,板坯宽度与冲击力和狗骨高度成反比。因此,合理选择侧压量及板坯规格,严格控制冲击力的大小,不仅有利于改善板坯质量、提高设备使用寿命,也为生产现场定制板坯规程提供了参考。
Solid Works was used to establish the geometric model of slab width and width, and the whole process of slab width and width was simulated systematically in the nonlinear finite element analysis software ANSYS / LS-DYNA. The effects of side pressure Impact force and stress state, the simulation results of slabs with the same gauge at different lateral pressures and slabs with the same gauge at the same lateral pressure were compared. The results show that the slab head and tail are unstable deformation zone and the central slab is a stable deformation zone. The lateral impact force, the slab stress and the dog bone height increase with the increase of the lateral pressure. The slab thickness and Impact and dog bone height is proportional to the slab width and impact and dog height is inversely proportional to. Therefore, a reasonable choice of side pressure and slab size, strict control of the impact of the size, not only help to improve the slab quality, improve equipment life, but also for the production site custom slab procedures provide a reference.