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Location: Outside Hall D
Title: Enhanced Flow Monitoring in Resin Transfer Molding Using Additively Manufactured Tooling with Embedded Carbon Nanotube Sensors
Description:
The Poster Session will be available for browsing throughout CAMX, located in the exhibit hall lobby, across from registration. Winning entries will be announced at the Poster Sessions on Wednesday, September 11, at 1:00 pm and all entrants will be available at this time to answer questions about their research. In the Resin Transfer Molding (RTM) process, a fabric preform is placed in a closed mold, and resin is injected to fill the spaces between fibers, displacing air through vents. Creating RTM net-shaped composites requires a conformal mold. However, the traditional method to design resin injection channels and vents is both expensive and iterative, aimed at minimizing filling time and avoiding voids and dry spots. Therefore, monitoring resin flow is essential to prevent voids and dry spots, thus enhancing the final composite quality. To achieve this, Electrical Impedance Tomography (EIT), a low-cost and radiation-free imaging technology, is utilized. EIT reconstructs an impedance map from boundary electrode potential data under a constant DC, thereby tracking the flow front during the impregnation process. This research explores the use of additive manufacturing to design and produce 3D-printed prototype molds with embedded flow sensors. Consequently, real-time flow monitoring is enabled, allowing for the control of resin flow during mold filling. This ensures the production of defect-free composite parts.
Type: Poster Session
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