Dynamic response of single curved fiber-metal hybrid lamina composites subject to low-velocity impact

• Published in: International journal of impact engineering Vol. 164; p. 104209
• Main Authors: Xin, Hao, Tao, Jin, Xiaomin, Ma, Xuefeng, Shu, Xin, Li
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.06.2022; Elsevier BV
• Subjects: Composite materials; Correlation analysis; Deformation; Deformation/failure mode; Digital imaging; Dynamic response; Energy absorption; Failure modes; Fiber-metal Hybrid Lamina Composites (FM-HLCs); Fiber-metal laminates; High speed cameras; Impact resistance; Impact tests; Impact velocity; Low-Velocity Impact (LVI); Radius of curvature; Velocity; Dynamic response; Deformation/failure mode; Fiber-metal Hybrid Lamina Composites (FM-HLCs); Low-Velocity Impact (LVI)
• ISSN: 0734-743X; 1879-3509
• DOI: 10.1016/j.ijimpeng.2022.104209

•A novel single curved fiber-metal hybrid lamina composite (FM-HLC) was designed.•The impact resistance of FM-HLC can be enhanced by increasing fiber content.•Decreasing the radius of curvature limits the impact failure region.•The FM-HLC strategy can prevent metal-composite interface failure in FMLs. Fiber-metal hybrid lamina composites (FM-HLCs) are a new kind of fiber-metal composites, which aims at addressing the metal-composite interface failure in conventional fiber-metal laminates. In the current study, the low-velocity impact tests were conducted to examine the dynamic response of single curved FM-HLCs. The influence of weave pattern of fiber-metal hybrid lamina, impact velocity and radius of curvature on the dynamic response is considered in the experiment. The deformation/failure modes, force-time histories and energy absorption were obtained. The high-speed cameras were used to capture the deformation/failure processes of FM-HLCs and the instantaneous images for digital image correlation analysis. The results indicate that the “fiber-metal hybrid lamina” strategy can efficiently help maintain the integrity of FM-HLCs outside the impact region. The increase of fiber content can efficiently decrease the deformation/failure region and permanent deflection of FM-HLCs, thus, enhancing its impact resistance. When the fiber content along circumferential and longitudinal directions is not consistent or the radius of curvature decreases, there forms an elliptical deformation region of FM-HLCs. The current work is expected to be of significance for the follow-up research and the potential applications of FM-HLCs. In addition, it is also a good reference for investigating the dynamic response of orthotropic panels/shells under low-velocity impact.