In this work, a bond-based peridynamic de-icing model has been developed to simulate the thermo-mechanical ice removal process of frozen structures. In the proposed numerical method, the influence of the deformation on the thermal states is considered. In this work, the ice is treated as an elastic brittle material in the framework of bond-based peridynamics, which can capture ice cracking during temperature increase and other temperature-dependent features of ice. Moreover, the characteristics of thermal load induced crack patterns in an ice sheet are discussed. The developed simulation method is verified and validated in a de-icing system of an aluminum sheet covered with ice, which is done by comparing the results obtained from peridynamic simulation with that obtained from finite element method (FEM) simulation. The results show good consistency between the peridynamic simulation and the FEM simulation. On the other hand, we find that the peridynamic simulations can directly capture the ice crack initiation and the crack propagation during the entire ice removal process, which is difficult to obtain from the FEM simulations.

中文翻译：

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从冷冻结构中耦合热机械去除冰的近场动力学建模和模拟

在这项工作中，已经开发了基于键的近场动力学除冰模型来模拟冷冻结构的热机械除冰过程。在所提出的数值方法中，考虑了变形对热状态的影响。在这项工作中，冰在基于键的近场动力学框架中被视为一种弹性脆性材料，它可以捕捉温度升高过程中的冰裂和冰的其他温度相关特征。此外，还讨论了冰盖中热载荷引起的裂纹模式的特征。通过将近场动力学模拟结果与有限元法 (FEM) 模拟结果进行比较，对所开发的模拟方法在覆冰的铝板除冰系统中进行了验证和验证。结果表明近场动力学模拟与有限元模拟之间具有良好的一致性。另一方面，我们发现近场动力学模拟可以直接捕捉整个除冰过程中的冰裂纹萌生和裂纹扩展，这很难从有限元模拟中获得。