The recycling of thermoset-based composites is challenging. replacement thermosetting resins with thermoplastics an initial step to address this issue, together the use green reinforcements. Owing recent development low-viscosity thermoplastic resins, it possible produce matrix using resin transfer molding (RTM) technique, which was originally conceived for production composites. These are base...

vacuum assisted resin transfer molding, as a sub-branch of rtm is a method of manufacturing composite specimens. considering the industrial development of this method, different modified techniques are designed to improve its performance. among these techniques, using a half flexible mold is regarded as an important method. in this work, dominant equations of resin flow through the mold in pola...

Resin Transfer Molding (RTM) is a composite manufacturing process. A preformed fiber is placed in a closed mold and a viscous resin is injected into the mold. In this paper, a model is developed to predict the flow pattern, extent of reaction and temperature change during filling and curing in a thin rectangular mold. A numerical simulation is presented to predict the free surface and...

Resin Transfer Molding (RTM) is a composite manufacturing process. A preformed fiber is placed in a closed mold and a viscous resin is injected into the mold. In this paper, a model is developed to predict the flow pattern, extent of reaction and temperature change during filling and curing in a thin rectangular mold. A numerical simulation is presented to predict the free surface and its inter...

Resin Transfer Molding (RTM) has drawn interest in recent years as an attractive technique for the manufacture of advanced ber reinforced composite materials. A major issue in this new manufacturing process is the reduction of voids during the resin ll process so that products with high quality are manufactured. Process modeling is particularly useful in understanding, designing, and optimizing...

Typically aerospace components produced using the Resin Transfer Molding (RTM) process are required by specification to use very high final injection pressure. This is believed to be necessary to produce a laminate that is void free and that produces structural equivalence to historical autoclave moldings. However, a low pressure RTM process has been developed, tested, and validated that produc...

Resin transfer molding (RTM) is a popular manufacturing technique that produces fiber reinforced polymer (FRP) composites. In this paper, a model-assisted flow front control system is developed based on real-time estimation of permeability/porosity ratio using the information acquired by a visualization system. In the proposed control system, a radial basis function (RBF) network meta-model is ...

Lately, natural fibers have been gaining consideration in development of composites due to its biodegradability, availability and low-cost compared synthetic fibers. Natural are renewable sources, biodegradable, environmentally friendly effortless machinery. In this paper, the manufacturing production for fiber reinforced polymer composite (NFRC) will be reviewed. These including injection mold...