添加橡胶层对纳米增强复合材料蒙皮夹层结构自由振动影响的分析评价

Q3 Materials Science
M. Al-Shablle, M. Al-Waily, E. Njim
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引用次数: 3

摘要

开发具有卓越振动性能的结构设计仍然是一个重大挑战,但它们同时保持坚固和轻质。复合面经常用于隔热结构中,作为金属板屋顶的替代方案。添加了橡胶覆面,以减少波浪的自然频率和衰减时间。本研究研究研究了构成复合材料结构板的材料的力学性能和固有频率计算,该复合材料结构面板是为添加橡胶层的结构应用而设计的。结果表明,添加密度为1180 kg/m3的SiO2纳米颗粒的橡胶层,自然频率的最佳降低率(VF=2.5%)为38.5%,而密度为1210 kg/m3时,自然频率为40.2%。虽然添加了Al2O3纳米颗粒的橡胶层显示出1180 kg/m3的密度,但在HF中的最佳还原率(VF=2.5%)为41%,而在密度为1210 kg/m3时,在NF中为36.8%,在密度为1210 kg/m3时为38.4%。使用某些假设来应用基尔霍夫理论来求解结构的数学模型。对不同密度的SiO2/环氧树脂和Al2O3/环氧树脂与聚乳酸核复合材料的表面进行了研究。纳米颗粒在粒径中所占的百分比在0%至2.50%之间。这项研究的结果揭示了在橡胶层存在的情况下,组成三明治的成分的基本行为。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analytical evaluation of the influence of adding rubber layers on free vibration of sandwich structure with presence of nano-reinforced composite skins
Developing structural designs that offer superior vibration properties is still a major challenge, but they stay solid and lightweight simultaneously. Composite faces are frequently used in insulating constructions as an alternative to sheet metal roofs. Rubber overlays have been added to reduce waves' natural frequency and fade time. The mechanical properties and the natural frequency calculation of the materials that make up the composite structural panels designed for structural applications with the addition of rubber layers were studied in this study. The results showed the addition of rubber layers with SiO2 nanoparticles with a density of 1180 kg m3, and the optimal decrease (VF = 2.5%) is 38.5% in the natural frequency while at a density of 1210 kg/m3, it is 40.2% in the natural frequency. While the addition of rubber layers with Al2O3 nanoparticles shows a density of 1180 kg/m3, the optimum reduction (VF = 2.5%) is 41% in HF while at a density of 1210 kg/m3 36.8% in an NF 41% during a density of 1210 kg/m3 38.4%. Certain hypotheses were used to apply Kirchhoff's theory to solve the mathematical model of the structure. The work was carried out on the faces of nanocomposites made of SiO2/epoxy and Al2O3/epoxy with different densities and polylactic acid core. The inclusion of nanoparticles as a percentage of the fraction size ranges from 0% to 2.50%. This study's results shed light on the fundamental behaviour of the components that make up the sandwich in the presence of rubber layers.
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来源期刊
Archives of materials science and engineering
Archives of materials science and engineering Materials Science-Materials Science (all)
CiteScore
2.90
自引率
0.00%
发文量
15
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