Vacuum assisted resin transfer moulding VARTM

Figure 3.6 Vacuum-assisted resin transfer moulding (VARTM).

The vacuum assisted resin transfer moulding (VARTM) process is a variant of vacuum-infusion RTM in which one of the solid tool faces is replaced by a flexible polymeric film (Fig. 23.14). 

Vacuum infusion process (VIP), generally referred to as vacuum-assisted resin transfer moulding (VARTM), in which the resin is introduced into the mould and the preform at less than atmospheric pressure (i.e. a vacuum). 

On the other hand, if the process is force controlled, so that h is unknown at any instant, Eqs [11.1], [11.3], [11.7] and [11.8] are coupled. This is similar to the situation in resin infusion (RI) and the vacuum-assisted resin transfer moulding (VARTM) process. A convenient way to solve the system in this case is to use an iterative procedure, where h is first estimated, then adjusted until the calculated clamping force converges to the actual value. In the one-dimensional case, the problem can be reduced to a single ODE which can be solved numerically. ... 

Resin infusion (Rl) is also known as the vacuum assisted resin transfer moulding (VARTM) process, vacuum assisted resin infusion (VARI) and Seeman s composite resin infusion moulding process (SCRIMP). In this... 

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