In this article, several thermoelastic benchmark cases are studied within the framework of ordinary state based peridynamic theory (OSPD). By using OSPD, the limitations of geometrical discontinuity in fracture analysis can be overcome. Meanwhile, double nodes can also be avoided during crack definition. A domain integral method with thermal effect is applied in calculating the thermal stress intensity factors (TSIFs). Meanwhile, peridynamic differential operators are utilized to rewrite the spatial derivatives in the domain integral. Numerical investigations of TSIFs in the single and mixed-mode crack scenarios are provided respectively, and verified by the reference solutions. Good agreements between OSPD and the reference solutions show high performance and capability of the proposed method in thermoelastic fracture analysis.

在本文中，在基于普通状态的近场动力学理论 (OSPD) 的框架内研究了几个热弹性基准案例。通过使用 OSPD，可以克服断裂分析中几何不连续性的限制。同时，在裂纹定义过程中也可以避免双节点。在计算热应力强度因子 (TSIF) 时应用了具有热效应的域积分方法。同时，利用近场动力学微分算子重写域积分中的空间导数。分别提供了TSIFs在单模和混合模裂纹场景下的数值研究，并通过参考解决方案进行了验证。OSPD 和参考解决方案之间的良好一致性表明所提出的方法在热弹性断裂分析中的高性能和能力。