Title: Mechanical Performance of Needle-Punched Carbon Fiber Reinforced Phenolic Composites

Authors: Esmerehildo Trevino, Camila Belduque, Jitendra Tate

DOI: 10.33599/nasampe/s.21.0493

Abstract: Traditional composite laminates that are highly used in the aerospace and automotive industry have reinforcing fibers that lie in the X and Y orientation of the laminate or ply stack. The resulting composite product is one with anisotropic properties, being weaker in the Z orientation of the laminate. Composite failure will occur between the reinforcing layers at the resin rich interlayer. To improve the composite’s resistance to delamination, a needle-punching process is utilized to re-orient parent carbon fibers thru the thickness of the dry fiber ply stack. The needle-punching equipment consists of a needle-board carrying rows of barbed needles. The needle-board drives the needles through the preform, and the barbs re-orienting the fibers in the Z direction. Rayon based 8-harness satin carbon fiber is needle-punched and infused with a phenolic resin using Vacuum Assisted Resin Transfer Molding (VARTM). Varying degrees of needle-punch density are evaluated for their respective inter-laminar shear strengths. A correlation model of needle-density to mechanical behavior was developed and fiber re-orientation was analyzed by microscopic imaging.

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Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000493

Pages: 10

Price: FREE