期刊
APPLIED COMPOSITE MATERIALS
卷 26, 期 5-6, 页码 1389-1410出版社
SPRINGER
DOI: 10.1007/s10443-019-09786-2
关键词
Thermoplastic composites; High-velocity impact; Digital image correlation (DIC); Ultrasonic C-scanning; Bird-strikes; Runway debris damage; Numerical modelling
资金
- Aviation Industry Corporation of China (AVIC)
- First Aircraft Institute (FAI)
- Manufacturing Technology Institute (MTI)
The present paper investigates the impact performance of woven-fabric carbon-fibre composites based upon both thermoplastic- and thermoset-matrix polymers under high-velocity impact loading by conducting gas-gun experiments at impact velocities of up to 100 m.s(-1). The carbon-fibre reinforced-polymers (CFRPs) are impacted using soft- (i.e. gelatine) and hard- (i.e. aluminium-alloy) projectiles to simulate either a soft bird-strike or a hard foreign-body impact (e.g. runway debris), respectively, on typical composites employed in civil aircraft. The out-of-plane displacements of the impacted composite specimen are obtained by means of a three-dimensional Digital Image Correlation (DIC) system for the soft-projectile impact on the composites and the extent of damage is assessed both visually and by using portable C-scan equipment. The perforation resistance and energy absorbing capability of the composites are also studied by performing high-velocity impact experiments using the hard-projectile and the resulting extent and type of damage are identified. In addition, a Finite Element (FE) model is also developed to investigate the interaction between the projectile and the composite target.
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