铝/聚合物/铝夹层结构在不同加载速率和温度下的实验特性：建立低密度聚乙烯的构成关系

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2024-09-27 DOI:10.1016/j.compstruct.2024.118616

A. Bendarma , A. Rusinek , C. Czarnota , T. Jankowiak , R. Bernier , T. Lodygowski

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引用次数: 0

摘要

复合夹层结构（如 Alucobond）因其轻质、高强度重量比和隔热性能，已成为多种工程应用中的理想材料。分析其在不同加载速率下的机械行为对于优化其性能至关重要。本研究考察了 Alucobond 夹层复合材料结构在动态和准静态压缩载荷下的机械响应。在高应变率下进行的动态压缩试验和在较低应变率和温度下进行的准静态压缩试验被用来预测材料在不同加载条件下的行为。此外，在不同应变率和温度的动态和准静态加载条件下，对低密度聚乙烯（LDPE）芯层的机械性能进行了表征，从而建立了低密度聚乙烯材料的构成关系。对 Alucobond 和 LDPE 的比较研究突出表明了材料成分和加载条件对复合材料夹层结构机械行为的影响。

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Experimental characterization of aluminum/polymer/aluminum sandwich structures under various loading rates and temperatures: Establishing a constitutive relationship for LDPE

Composite sandwich structures, for example Alucobond, have appeared as auspicious materials in a diversity of engineering applications due to their lightweight, high strength to weight ratio and thermal insulation properties. Analyzing their mechanical behavior in different loading rates is critical to optimizing their performance. This study inspects the mechanical response of Alucobond sandwich composite structures under dynamic and quasi-static compression loadings. Dynamic compression tests, carried out at high strain rates, and quasi-static compression tests, carried out at lower strain rates and temperatures, were used to predict the behavior of the material under different loading conditions. In addition, the mechanical properties of the low-density polyethylene (LDPE) core layer were characterized under dynamic and quasi-static loading conditions, with varying strain rates and temperatures, leading to the establishment of a constitutive relationship for the LDPE material. The comparative study of Alucobond and LDPE highlights the influence of material composition and loading conditions on the mechanical behavior of the composite sandwich structures.

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.