Correlation between toughness and metal volume fraction in carbon-glass fiber laminates tested under tensile loading

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Composite Interfaces Pub Date : 2023-03-12 DOI:10.1080/09276440.2023.2189352

Iqra Fatima, H. Ejaz, M. Nigar, D. Rizwan, Aqeel A. Khurram

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引用次数: 1

Abstract

ABSTRACT The conducted work investigates the correlation between toughness characteristics and metal volume fraction in Fiber Metal Laminates (FMLs) subjected to tensile loads. Aerospace grade Al 7075-T6 was utilized as the varying metal alloy in the study. The metal alloy was combined with glass and carbon fiber layers to create different configurations of FMLs with varying stacking sequences. For better adhesion between metal and composite parts, aluminum layers were etched with sodium hydroxide and chromic-sulfuric acid solutions. The laminate sheets were prepared using the hand layup method which was followed by a vacuum bagging process. Specimens were cut and tested as per ASTM standard. Results of the experimentation showed that the aluminum volume fraction is directly related to the failure strain and modulus of toughness, however, inversely proportional to the stiffness characteristics of the laminates. The highest improvement of 111% in toughness parameter in comparison to pure composite laminate was reported. Finally, a comprehensive analysis on the type of fracture behavior in comparison to classical laminate theory was critically discussed. GRAPHICAL ABSTRACT

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拉伸载荷下碳-玻璃纤维层合板韧性与金属体积分数的相关性研究

本文研究了拉伸载荷作用下纤维金属层压板(FMLs)的韧性特性与金属体积分数之间的关系。本研究采用航空级Al 7075-T6作为变金属合金。将金属合金与玻璃和碳纤维层结合，形成具有不同堆叠顺序的不同结构的fml。为了提高金属与复合材料部件之间的附着力，用氢氧化钠和铬硫酸溶液蚀刻铝层。采用手工铺层法制备层压板，然后进行真空装袋工艺。试样按ASTM标准切割和测试。实验结果表明，铝体积分数与层合板的破坏应变和韧性模量直接相关，与层合板的刚度特性成反比。与纯复合材料层合板相比，其韧性参数提高了111%。最后，对断裂行为类型进行了综合分析，并与经典层压理论进行了比较。图形抽象

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来源期刊

Composite Interfaces 工程技术-材料科学：复合

CiteScore

5.00

自引率

3.80%

发文量

审稿时长

3 months

期刊介绍： Composite Interfaces publishes interdisciplinary scientific and engineering research articles on composite interfaces/interphases and their related phenomena. Presenting new concepts for the fundamental understanding of composite interface study, the journal balances interest in chemistry, physical properties, mechanical properties, molecular structures, characterization techniques and theories. Composite Interfaces covers a wide range of topics including - but not restricted to: -surface treatment of reinforcing fibers and fillers- effect of interface structure on mechanical properties, physical properties, curing and rheology- coupling agents- synthesis of matrices designed to promote adhesion- molecular and atomic characterization of interfaces- interfacial morphology- dynamic mechanical study of interphases- interfacial compatibilization- adsorption- tribology- composites with organic, inorganic and metallic materials- composites applied to aerospace, automotive, appliances, electronics, construction, marine, optical and biomedical fields