Effect of ply angle on anti-high speed impact properties of polyimide fiber reinforced composites

doi:10.19936/j.cnki.2096-8000.20240928.002

Abstract

Abstract: In order to investigate the effect of ply angle on anti-high speed impact properties of polyimide fiber reinforced composites, a series of polyimide fiber reinforced bismaleate composites laminates with different ply angle were fabricated. The effects of ply angle on the damage morphology, ballistic limit velocity and breakdown energy absorption of composites were studied. The results demonstrate that the greater the fiber anisotropy in laminates with different ply angles, the greater the deformation of the composite laminates; meanwhile, the results also indicate that [0/90] ply has the best high-speed impact resistance. Under non-breakdown condition, the ballistic energy absorption efficiency of [0/90] ply is 61% higher than that of [45/0/-45] ply, and under breakdown condition, the breakdown energy absorption efficiency of [0/90] ply is 68% higher than that of [30/0/-30] ply. Furthermore, the laying angle affects the transmission of impact loads along the fiber axial direction among different layers, [0/90] laying can avoid the transverse shear failure of fibers, so it has the best high-speed impact resistance performance.

Key words: ply angle, polyimide fiber, anti-high speed impact property, fan containment case, composites

CLC Number:

TB332

YAN Jiqiang, XIE Zongyou, LI Jun, ZOU Qi, LEI Shuai, CAO Tienan, ZHANG Daijun. Effect of ply angle on anti-high speed impact properties of polyimide fiber reinforced composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(9): 12-18.

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