Resin Flow Behavior Simulation of Grooved Foam Sandwich Composites with the Vacuum Assisted Resin Infusion (VARI) Molding Process
نویسندگان
چکیده
The resin flow behavior in the vacuum assisted resin infusion molding process (VARI) of foam sandwich composites was studied by both visualization flow experiments and computer simulation. Both experimental and simulation results show that: the distribution medium (DM) leads to a shorter molding filling time in grooved foam sandwich composites via the VARI process, and the mold filling time is linearly reduced with the increase of the ratio of DM/Preform. Patterns of the resin sources have a significant influence on the resin filling time. The filling time of center source is shorter than that of edge pattern. Point pattern results in longer filling time than of linear source. Short edge/center patterns need a longer time to fill the mould compared with Long edge/center sources.
منابع مشابه
Capillary Effects on Surface Enhancement in a Non-Homogeneous Fibrous Porous Medium
The evaluation of a free fluid surface in a porous medium has several mathematical applications that are important in industries using molds, particularly in the fluid injection process. The vacuum-assisted resin transfer molding (VARTM) process is a promising technology in the primary composite industry. An accurate computational simulation of the VARTM process would be a cost-effective tool i...
متن کاملInvestigation of Parameters Effect Resin Movement Velocity at Vacuum Assisted Resin Transfer Molding Method (VARTM)
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 ...
متن کاملInvestigation of Parameters Effect Resin Movement Velocity at Vacuum Assisted Resin Transfer Molding Method (VARTM)
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 ...
متن کاملFlow Visualization and Modeling of the Resin Infusion Process during Manufacture of Fiber Metal Laminates by Vartm
Fiber metal laminates (FMLs) have been successfully manufactured by the vacuum assisted resin transfer molding (VARTM) process developed at NASA Langley Research Center. A flow visualization fixture of the FML, VARTM process was constructed and used to observe the resin infiltration process. Results of the flow visualization experiments are reported and compared with the predictions of a VARTM ...
متن کاملOptimizing Polymer Infusion Process for Thin Ply Textile Composites with Novel Matrix System
For mass production of structural composites, use of different textile patterns, custom preforming, room temperature cure high performance polymers and simplistic manufacturing approaches are desired. Woven fabrics are widely used for infusion processes owing to their high permeability but their localised mechanical performance is affected due to inherent associated crimps. The current investig...
متن کامل