Vibration assistance in the process of liquid composite molding (LCM), a relatively new concept, is investigated in this paper. A non-Newtonian resin simulator fluid (1% polyacrylamide/water solution) is injected with vibration assistance into a simulator mold, with pre-placed actual (industrial) pre-form. Mold filling under various conditions is investigated.
An analytical model based on the control volume finite element representation is constructed for the process. A comparison of the experimental and computational results showed good agreement. Effects of the presence of the preform, the damping of the input vibration in the mold space, and how it is affected by various parameters are investigated.