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Frictional properties at tool-ply interface of continuous vs stretch broken carbon fiber (SBCF) prepreg


Title: Frictional properties at tool-ply interface of continuous vs stretch broken carbon fiber (SBCF) prepreg

Authors: Tasnia J. Nur, Cecily Ryan, Dilpreet Bajwa, Roberta Amendola, Chris Ridgard, Doug Cairns

DOI: 10.33599/nasampe/c.23.0191

Abstract: Forming processes of carbon fiber composite materials are characterized by relative movement between composite laminate and the forming tool and also between the subsequent prepreg plies within the laminate. It is critical to characterize frictional properties both at tool/ply and ply/ply interface during composite forming in order to achieve process optimization and high-quality products. A dedicated experimental fixture has been designed and developed at Montana State University in order to conduct research for the characterization of inter-ply and tool-ply frictional behavior of carbon fiber composite prepregs. Preliminary tool-ply friction experiments performed with uncured continuous carbon fiber reinforced with Hexcel HexPly® 8552 epoxy resin system demonstrated the viability of the test fixture and further experiments were performed based on the observations from preliminary results to understand and analyze the friction behaviors of MSU-made stretch-broken carbon fiber (SBCF) reinforced prepreg materials in particular. The effect of key processing parameters representative of autoclave forming such as forming rate, normal pressure, viscosity of uncured resin (controlled by temperature) on the frictional properties were investigated, both for continuous prepregs and stretch broken carbon fiber (SBCF) composite prepregs. Recent results will be presented and compared to provide a better understanding of optimizing the manufacturing process with SBCF materials.

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Conference: CAMX 2023

Publication Date: 2023/10/30

SKU: TP23-0000000191

Pages: 16

Price: $32.00

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