Abstract The thermoelastic problem of a stretchable rigid line inhomogeneity at a bimaterial interface is considered. The closed-form solution is presented and the explicit expressions of the stress at the tip of the rigid line inhomogeneity are derived. The effects of thermal expansion of rigid line on the stress intensity factors are investigated. It is found that the singularity of stress maintains the same structure, and the stresses possess an apparent oscillatory character, as in the case of a rigid line without the effects of thermal expansion. However, there is a significant difference in the coefficient of the singular behavior of the stresses at the tip of rigid line, which is due to the temperature changes.

中文翻译：

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软双材料界面处可拉伸刚性线不均匀性的热弹性问题

摘要 考虑了双材料界面处可拉伸刚性线不均匀性的热弹性问题。给出了封闭形式的解，并推导出刚性线不均匀性尖端应力的显式表达式。研究了刚性线的热膨胀对应力强度因子的影响。发现应力的奇异性保持相同的结构，并且应力具有明显的振荡特性，就像在没有热膨胀影响的刚性线的情况下一样。然而，刚性线尖端应力的奇异行为系数存在显着差异，这是由于温度变化造成的。