This work aims to provide a computational model that can describe the complex behaviour of refractory industrial components under working conditions. Special attention is given to the asymmetric tension-compression behaviour and its evolution in the full range of working temperatures. The model accounts for inelastic flow in compression and brittle fracture behaviour in tension by leveraging the continuum-mechanics theory of plasticity and phase-field fracture damage. The model is implemented in the Finite Element open-source platform FEniCS and is used to analyze the fracture phenomenon in the refractory plate used in ladle slide gate systems to control the liquid steel flow from the ladle to the tundish.

翻译：本研究旨在提出一种能够描述耐火工业部件在工作条件下复杂行为的计算模型。特别关注非对称拉压行为及其在整个工作温度范围内的演化。该模型基于连续介质力学塑性理论与相场断裂损伤理论，考虑了压缩状态下的非弹性流动和拉伸状态下的脆性断裂行为。该模型在有限元开源平台FEniCS中实现，并用于分析钢包滑动水口系统中控制钢液从钢包流向中间包的耐火滑板的断裂现象。