中文摘要：

采用基于内聚力模型的Surface-based cohesive法对耐火材料界面相的力学行为进行模拟,仿真再现了耐火材料界面脱粘的整个过程.研究了受载形式、颗粒相形状以及分布方式对界面力学性能的影响.结果表明,界面脱粘可以分为界面承载、界面损伤和损伤扩展三个阶段.圆形颗粒情况下,界面损伤最先出现在垂直加载方向的界面两端附近,受拉时界面脱粘过程较快,且最大应力值大于受压状态;椭圆形颗粒情况下,界面损伤最先出现在长轴端部附近,脱粘所需时间稍长于圆形颗粒,且=45°倾斜的椭圆形颗粒界面上应力最小.

英文摘要：

Based on cohesive zone model,the Surface-based cohesive method was adopted to simulate the mechanical behavior of refractory interace.The simulation reappears the entire debonding process of refractory interface.The influence of loading form,the shape and distribution form of porticle phase on the mechanical properties of the interface were studied in detail.The results showed that the interfacial debonding can be divided into three stages：interface bearing stage,interface damage stage and damage propagation stage.Under the round particles case,interface damage first appeared near both ends of the vertical load direction.In the case of tersion,interfacial debonding process faster,and the maximum stress value was greater than the compressed state.Under the elliptical particles case,interface damage first appeared near the ends of the long axis.Debonding needed a little longer than round particles,and the stress value of interface was minimal when the elliptical particle was 45 degrees tilted.