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首页> 外文期刊>ISIJ international >Mathematical Modeling of Thermally Induced Stresses in Two-roll Melt Drag Thin Strip Casting of Steel
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Mathematical Modeling of Thermally Induced Stresses in Two-roll Melt Drag Thin Strip Casting of Steel

机译：钢两辊熔铸薄带铸件中热应力的数学建模

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摘要

In thin strip casting of steel, a major problem is the formation of cracks due to thermally induced stresses in the solidifying material. To compute these stresses and the susceptibility of the material to crack due to these stresses, a two-dimensional finite element based thermo-mechanical model has been developed. The temperature field obtained by the fluid flow and heat transfer model is imposed as a thermal load to the system. A visco-plastic constitutive relation ahs been used to describe the behavior of solidifying steel. A temperature dependent ultimate strength is used to define the cracking index, which indicates the susceptibility of the material to crack. Stress calculations are performed using a commercial software ANSYS.
机译：在钢的薄带铸造中，主要问题是由于热固化材料中的热应力而形成的裂纹。为了计算这些应力以及材料由于这些应力而产生裂纹的敏感性，已经开发了基于二维有限元的热机械模型。通过流体流动和传热模型获得的温度场被作为系统的热负荷。粘塑性本构关系已用于描述钢的凝固行为。与温度有关的极限强度用于定义开裂指数，该开裂指数表示材料开裂的敏感性。应力计算是使用商用软件ANSYS执行的。

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