An experimental investigation on the effect of incorporating graphene nanoplatelets on the low-velocity impact behavior of fiber metal laminates

被引：33
作者：
Fathi, Azadeh [1 ]
Liaghat, Gholamhossein [1 ,2 ]
Sabouri, Hadi [3 ]
机构：
[1] Tarbiat Modares Univ, Fac Engn, Dept Mech Engn, Tehran, Iran
[2] Kingston Univ, Sch Mech & Aerosp Engn, London, England
[3] Kharazmi Univ, Fac Engn, Mech Engn, Tehran, Iran
来源：
THIN-WALLED STRUCTURES | 2021年 / 167卷
关键词：
Low-velocity impact; Composite; Fiber metal laminate; Graphene nanoplatelets; WALLED CARBON NANOTUBES; HAND LAY-UP; MECHANICAL-PROPERTIES; SURFACE PRETREATMENT; POLYMER COMPOSITE; RESISTANCE; DAMAGE; THICKNESS; APPLICABILITY; PERFORMANCE;
D O I：
10.1016/j.tws.2021.108162
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
ABSTR A C T In this study, experimental investigations are implemented to evaluate the effect of incorporation of graphene nanoplatelets (GNPs) on the low-velocity impact behavior of composites and fiber metal laminates (FMLs). The hand layup technique is employed to fabricate composite specimens and FML panels with 2/1 configuration. Impact response and damage patterns of unmodified and modified specimens subjected to various impact energy levels are compared. The results reveal that the incorporating 0.2 wt% of GNPs strengthens the impact resistance of FMLs so that the modified panels possess higher bending stiffness, peak load, energy absorption and SEA compared to the unreinforced ones. Visual inspections and SEM images exhibit that the inclusion of GNPs enhances the adhesion between resin/fibers as well as composite plies, thereby reducing damage area and increasing penetration threshold of FMLs. In addition, reinforcing composite panels considerably improves the impact behavior in comparison with the unmodified composites.
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页数：18
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