Abstract Electromechanical resonant de-icing systems provide a low-energy solution against ice accumulation on aircraft. Recent researches show a growing interest towards these systems in the context of more electrical aircraft. Electromechanical de-icing systems consists in electric actuators producing stress within the ice, through micro-vibrations of the surface to be protected, leading to bulk or adhesive failure and, ultimately, ice shedding. The understanding of the mechanisms at play is of prime importance in order to design efficient ice protection systems. Despite a large number of studies in the literature, there is still a lack when dealing with fracture propagation phenomena in this context. In this work the authors propose a model based on the well established phase-field variational approach to fracture. The approach is applied to the study of crack propagation and debonding of ice under the effect of an electromechanical resonant de-icing system. Numerical experiments are performed in order to assess possible ice shedding mechanisms.

中文翻译：

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机电共振防冰系统：通过相场混合粘合剂/脆性断裂模型进行数值研究

摘要 机电共振除冰系统提供了一种防止飞机积冰的低能量解决方案。最近的研究表明，在更多电动飞机的背景下，人们对这些系统越来越感兴趣。机电除冰系统包括电动执行器在冰内产生应力，通过要保护的表面的微振动，导致整体或粘合剂失效，并最终导致冰脱落。了解起作用的机制对于设计有效的防冰系统至关重要。尽管文献中有大量研究，但在处理这种情况下的裂缝扩展现象时仍然存在不足。在这项工作中，作者基于成熟的相场变分方法提出了一个模型。该方法应用于机电共振除冰系统作用下冰的裂纹扩展和剥离的研究。进行数值实验以评估可能的冰脱落机制。