Vacuum-assisted resin transfer molding (VARTM) processes have been proven to be cost-effective manufacturing techniques for large composite structures. However, their use has been limited to single resin systems. A large variety Of composite structures requires multiple resins to serve different purposes while being integrated into a single structure. Significant environmental cost savings are ...

in this paper, vacuum assisted resin transfer molding (vartm) method was simulated by analytical solution. then the effect of parameters like fiber density, distribution of layer thickness, perform layer thickness, resin viscosity was investigated theoretically. obtained results show that by selecting optimum distribution layer thickness, increasing fiber volume fraction, reducing viscosity of ...

A great effort has been made to quantify the detrimental effect of voids on CFRP, nevertheless, impact properties barely studied and when it considered, always for prepeg materials under low energies (< 6 J). This work focuses quantification NCF plates manufactured by LCM. For this purpose, biaxial (0/90) NCF-Epoxy laminates with different void contents were tested drop weight method. Four LCM ...

Room temperature cure epoxy resin has been doped with SiC nanoparticles through an ultrasonic cavitation process. The modified resin was then utilized in a Vacuum Assisted Resin Transfer Molding (VARTM) process with satin weave carbon fibers to manufacture nanophased composite panels. The nanoparticles were spherical in shape and about 29 nm in diameter. The loading of nanoparticles into the re...

Fill-front and cure progress monitoring is critical for vacuum-assisted resin transfer molding (VARTM) manufacturing processes. The experimental multi-channel system presented in this paper includes sensors, signal conditioning, data acquisition software, and signal post-processing components. The sensors are mechanically flexible and optically transparent fringing electric field electrode syst...

adhesive bonding technology is being used in a variety of modern industries, including the automotive, aerospace, maritime, construction, defense and so on. on the other side, polymeric nano - composites attracted both academic and industrial interests in the past decades. the scope of this paper is experimental investigation on the effects of the addition of alpha-alumina nanoparticles to the ...

A novel composite manufacturing process monitoring application using fibre-optic (FO) sensors is reported for vacuum-assisted resin transfer moulding (VaRTM) with a rigid-closed mould. fully distributed Rayleigh-Backscattering based load-monitoring approach demonstrated by numerical modelling and experimental application. Lateral fabric compression reliably tracked throughout the entire VaRTM p...

Vacuum assisted resin transfer molding (VARTM) is a fiber reinforced composite (FRC) making process in which impregnated to fabric by application of vacuum. This also known as vacuum infusion process. The critical issue VARTM void generation. Voids form due variety reasons, most can be avoided. degassing one the solutions will reduce air entrapped inside during impregnation. In this work six la...