Abstract: The temperatures and thichnesses of solidified shells in ISP type mould for continuous casting of thin slabs are analysed,and based on which three dimensional thermal palsto-elastic EFM analyses on the shells are carried out,and,in turn,the distributions of temperatures,stresses and displacements,as well as the longitudinal cracking index (L.C.I),transversal cracking index (T.C.I) and the index defined with effective stresses of the solidified shells in the different drawing speeds are given.

Key words: continuous casting for thin slabs, solidified shell, finite element, numerical analysis

摘要： 首先计算ISP型薄板坯连铸结晶器内凝固坯壳的温度场和厚度,在此基础上用三维热弹塑性接触有限元方法对凝固坯壳进行分析.给出ISP型凝固壳在两种拉坯速度下的应力、温度和位移分布,绘出纵向成裂指数、横向成裂指数和用等效应力定义的成裂指数的变化曲线.

关键词: 薄板坯连铸, 凝固坯壳, 有限元, 数值分析