Design, thermal-mechanical coupling analysis, and optimization of polymeric matrix composite sandwiches with a lattice core exposed to a high temperature

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications Pub Date : 2024-04-23 DOI:10.1177/14644207241244505

Hiba Al Amouri, K. Khalil, Georgio Rizk, S. Alfayad

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Abstract

This study presents the design of a sandwich structure tailored for post-heat transfer applications subjected to out-of-plane compression. A three-dimensional finite element simulation model was developed to analyze the temperature distribution within the sandwich structure and investigate the effects of high-temperature exposure on its mechanical behaviors. The structure was subjected to a temperature of 300 °C for 400 s, and the temperature distribution at the upper connection point between the top face sheet and the struts of the core was determined. Subsequently, upon returning the sandwich to ambient temperature, a comprehensive calculation of its mechanical properties was conducted and then enhanced by applying different optimization techniques. The results demonstrate that filling the core with Saffil alumina fibers in the presence of a 1.5 mm a thermal barrier coating of Superwool 607 helps increase the mechanical properties of the sandwich structure by around 55%.

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带有暴露在高温下的晶格核心的聚合物基复合材料三明治的设计、热机械耦合分析和优化

本研究介绍了一种夹层结构的设计，该结构专为平面外压缩的热传递后应用而定制。研究人员建立了一个三维有限元模拟模型，以分析夹层结构内部的温度分布，并研究高温暴露对其机械性能的影响。将夹层结构置于 300 °C 的高温下 400 秒，并测定了夹层结构顶部面片与夹芯支柱之间上连接点的温度分布。随后，在夹层恢复到环境温度后，对其机械性能进行了全面计算，并通过应用不同的优化技术进行了改进。结果表明，在夹芯中填充萨菲尔氧化铝纤维，再加上一层 1.5 毫米的超级羊毛 607 隔热涂层，有助于将夹层结构的机械性能提高约 55%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 工程技术-材料科学：综合

CiteScore

4.70

自引率

8.30%

发文量

166

审稿时长

3 months

期刊介绍： The Journal of Materials: Design and Applications covers the usage and design of materials for application in an engineering context. The materials covered include metals, ceramics, and composites, as well as engineering polymers. "The Journal of Materials Design and Applications is dedicated to publishing papers of the highest quality, in a timely fashion, covering a variety of important areas in materials technology. The Journal''s publishers have a wealth of publishing expertise and ensure that authors are given exemplary service. Every attention is given to publishing the papers as quickly as possible. The Journal has an excellent international reputation, with a corresponding international Editorial Board from a large number of different materials areas and disciplines advising the Editor." Professor Bill Banks - University of Strathclyde, UK This journal is a member of the Committee on Publication Ethics (COPE).