Ciolca Miruna, Cormos Raul, Neagoe Catalin Andrei, Hadar Anton
Department of Strength of Materials, National University of Science and Technology POLITEHNICA Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania.
INCAS-National Institute for Aerospace Research "Elie Carafoli", Iuliu Maniu Blvd. 220, 060042 Bucharest, Romania.
Materials (Basel). 2025 Apr 10;18(8):1744. doi: 10.3390/ma18081744.
Honeycomb composite materials are widely used in many areas of mechanical engineering where weight saving is a crucial factor. One of the main loads that such material configurations are designed to withstand is compressive load. The most important industrial sector where honeycomb composite materials have found their application is in the aerospace industry, due to their advantages of high strength and lightness. In this article, two forms of finite element model analyses are presented for a novel multilayered honeycomb composite material with impregnated paper cores. The first represents a detailed approach tailored for local analysis, while the second is useful for a global analysis of the honeycomb composite material. Both types of modeling techniques are presented with a description of their advantages and drawbacks, highlighting the increased precision of the complex model-closest deformation estimations-and the agility of the equivalent one-an 80% reduction in complexity, providing acceptable results. An initial comparative analysis is performed, and the obtained results are discussed. An experimental validation is also carried out, followed by the presentation of a suggested practical application, displaying good accordance.
蜂窝复合材料广泛应用于机械工程的许多领域，在这些领域中减轻重量是一个关键因素。这种材料结构设计要承受的主要载荷之一是压缩载荷。蜂窝复合材料得以应用的最重要工业领域是航空航天工业，这得益于其高强度和轻质的优点。本文针对一种带有浸渍纸芯的新型多层蜂窝复合材料，给出了两种有限元模型分析形式。第一种是为局部分析量身定制的详细方法，而第二种对蜂窝复合材料的整体分析很有用。两种建模技术都进行了介绍，并阐述了它们的优缺点，突出了复杂模型在最接近变形估计方面提高的精度以及等效模型的灵活性——复杂度降低了80%，同时能提供可接受的结果。进行了初步的对比分析，并对所得结果进行了讨论。还进行了实验验证，随后展示了一个建议的实际应用，结果显示吻合度良好。
