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Interactive optimization of the resin transfer molding using a general-purpose tool: a case study

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Simulation tools for liquid composite molding processes are a key to predict and solve manufacturing issues of composite materials. Numerical processes are commonly used to analyse and predict mould filling, considering also resin cure and exothermic reactions. These evaluations are usually performed through dedicated software tools that require highly specialized operators and purchasing costs. The present study relates to a multi-objective optimization approach for evaluating the effect of different process parameters of the resin transfer molding (RTM) process using a multi-purpose tool. Starting from a simple case, useful for analysing the effect of mesh type and size on the simulations, and then increasing the complexity of the models, virtual simulations have been validated through real tests. Afterward, this approach has been used for the optimization of the RTM process for the manufacturing of an automotive component. Gate positions, injection pressure and resin temperature have been optimized using finite-volume analysis with a multi-objective genetic algorithm. Finally, the parameters have been used in real experiments in order to validate the efficiency and the reliability of multi-purpose tool in simulating RTM processes.

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Correspondence to Daniele Landi.

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Landi, D., Vita, A. & Germani, M. Interactive optimization of the resin transfer molding using a general-purpose tool: a case study. Int J Interact Des Manuf 14, 295–308 (2020). https://doi.org/10.1007/s12008-019-00631-1

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  • RTM
  • Process simulation
  • Virtual prototyping
  • Multi-objective optimization