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Experimental investigation of quasi-static behavior of composite and fiber metal laminate panels modified by graphene nanoplatelets
Journal of Reinforced Plastics and Composites ( IF 3.1 ) Pub Date : 2021-03-31 , DOI: 10.1177/0731684420985275
Azadeh Fathi 1 , Gholamhossein Liaghat 1, 2 , Hadi Sabouri 3 , Mahmoud Chizari 4 , Homayoun Hadavinia 2 , Sahand Chitsaz Charandabi 5
Affiliation  

The current study investigated the influence of incorporation of graphene nanoplatelets (GNPs) on quasi-static behavior of composite and fiber metal laminate (FML) panels. The unmodified and modified composite specimens and FML panels with 2/1 configuration were fabricated using a hand lay-up method and investigated through a quasi-static punch and indentation testing. The two sets of tests were conducted with a flat-ended indenter and the loading conditions were the same for all samples, except support spans which were varied. Following experimental testing, possible damages at the punch region were closely investigated and localized and global damages were observed. The results revealed that adding 0.2 wt% GNPs improved the strength and fracture toughness of specimens by delaying the failure modes. On the contrary, GNPs made the bonding between the aluminum and composite interface to weaken.



中文翻译:

石墨烯纳米片修饰的复合材料和纤维金属层压板准静态性能的实验研究

当前的研究调查了石墨烯纳米片(GNPs)的掺入对复合材料和纤维金属层压板(FML)面板准静态性能的影响。使用手工铺贴法制造未改性和改性的2/1构造的复合材料试样和FML面板,并通过准静态冲头和压痕测试进行研究。两组测试均使用平头压头进行,所有样品的加载条件均相同,但支撑跨度不同。经过实验测试,对冲头区域可能造成的损坏进行了密切调查,并进行了局部和整体损坏的观察。结果表明,添加0.2 wt%的GNP可以延缓破坏模式,从而提高样品的强度和断裂韧性。相反,

更新日期:2021-03-31
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