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Ballistic impact performance of multi-phase STF-impregnated Kevlar fabrics in aero-engine containment
Abstract The current study focus on the multi-phase Shear thickening fluid (STF) treated high-strength fabrics which is an promising material for soft-wall containment casing. Three types of multi-phase STF were manufactured by adding graphene oxide (GO) and carbon nanotubes (CNTs) to a nanosilica suspension system. Steady rheological property tests and yarn pull-out tests were conducted to determine the shear thickening behavior of the multi-phase STFs and inter-yarn friction of their compound fabrics. Ballistic impact tests were conducted using titanium blade-like projectiles. The energy absorption, deformation evolution and damage patterns were investigated. Tests show that the addition of GO and CNTs resulted in a higher initial viscosity, a lower shear rate for onset of shear thickening and a lower thickening ratio. The enhancement of the frictional force is more striking for multi-phase STFs. The GO additives have the highest deformation in the ballistic impact tests, corresponding to the greatest energy absorption with a ballistic performance index 78.3% higher than that of neat fabrics. The results show great potential for reducing the weight of containment casing.
Highlights Multi-phase shear thickening fluid (STF) were prepared by adding carbon nanotubes and graphene oxide. Multi-phase STF impregnated fabrics were used in soft-wall containment casing system. Yarn pull-out tests were conducted to determine inter-yarn friction behavior. Ballistic impact tests were conducted using titanium blade-like projectile. Multi-phase STF shows improved impact resistance than single phase STF in containment casing application.
Ballistic impact performance of multi-phase STF-impregnated Kevlar fabrics in aero-engine containment
Abstract The current study focus on the multi-phase Shear thickening fluid (STF) treated high-strength fabrics which is an promising material for soft-wall containment casing. Three types of multi-phase STF were manufactured by adding graphene oxide (GO) and carbon nanotubes (CNTs) to a nanosilica suspension system. Steady rheological property tests and yarn pull-out tests were conducted to determine the shear thickening behavior of the multi-phase STFs and inter-yarn friction of their compound fabrics. Ballistic impact tests were conducted using titanium blade-like projectiles. The energy absorption, deformation evolution and damage patterns were investigated. Tests show that the addition of GO and CNTs resulted in a higher initial viscosity, a lower shear rate for onset of shear thickening and a lower thickening ratio. The enhancement of the frictional force is more striking for multi-phase STFs. The GO additives have the highest deformation in the ballistic impact tests, corresponding to the greatest energy absorption with a ballistic performance index 78.3% higher than that of neat fabrics. The results show great potential for reducing the weight of containment casing.
Highlights Multi-phase shear thickening fluid (STF) were prepared by adding carbon nanotubes and graphene oxide. Multi-phase STF impregnated fabrics were used in soft-wall containment casing system. Yarn pull-out tests were conducted to determine inter-yarn friction behavior. Ballistic impact tests were conducted using titanium blade-like projectile. Multi-phase STF shows improved impact resistance than single phase STF in containment casing application.
Ballistic impact performance of multi-phase STF-impregnated Kevlar fabrics in aero-engine containment
Liu, Lulu (author) / Cai, Ming (author) / Liu, Xu (author) / Zhao, Zhenhua (author) / Chen, Wei (author)
Thin-Walled Structures ; 157
2020-09-02
Article (Journal)
Electronic Resource
English
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