NUMERICAL SIMULATION OF VACUUM ASSISTED RESIN TRANSFER MOLDING (VARTM) PROCESS ON FOAM CORE SANDWICH STRUCTURE USING STRIP MODEL THEORY
The use of fiber-reinforced composite materials is increasing rapidly because it has several advantages such as being lightweight and having a high strength to weight ratio. One of the most widely used composite material construction models is a sandwich structure. Large quantities and mass manufact...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/69703 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The use of fiber-reinforced composite materials is increasing rapidly because it has several advantages such as being lightweight and having a high strength to weight ratio. One of the most widely used composite material construction models is a sandwich structure. Large quantities and mass manufacturing of composites can be done using a manufacturing method, namely Vacuum Assisted Resin Transfer Molding (VARTM) because of the low initial investment. The researchers previously conducted research on VARTM with experiments and numerical simulations. In their research, various parameters such as compaction pressure, initial resin temperature, fiber permeability, fiber porosity, high permeability media (HPM), as well as strip model configuration for the core model were carried out. This research focuses on numerical simulation of the VARTM foam-core sandwich manufacturing process. Simulations were carried out with ANSYS Fluent software. The resin flow pattern will be modeled using the Volume of Fluid (VoF) method. In this simulation, various parameters such as fiber type, resin type, core thickness, and hole diameter in the foam core are carried out to see the effect on the resin flow pattern or the position of the resin flow that occurs. The holes for resin flow in the foam core are modeled using the strip theory approach. The results obtained in this research are close to the results of tests conducted by Isoldi, et al and Xiaolan Song. Numerical simulations by varying the design and production parameters provide important information for use in more complex structures with the types of materials on the market. |
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