Simulating resin transfer moulding

Vistagy and the ESI Group have formed a partnership agreement to enable engineers to predict and correct potential moulding difficulties without needing to rely on extensive physical prototyping.

Specifically, the companies have provided data integration between their two software packages – Vistagy’s FiberSIM software, which engineers use to design composite parts, and PAM-RTM, an advanced simulation software for Liquid Composite Moulding (LCM) from the ESI Group.

Engineering organisations that design and manufacture composite products will reduce development times, the costs of engineering changes, and material waste as a result of the partnership.

Liquid Composite Moulding processes such as Resin Transfer Molding (RTM) are increasingly popular in the automotive, aerospace, medical, and sporting goods industries. These processes simplify and speed up the manufacture of composite parts. Resin Transfer Moulding involves infusing resin into a mould cavity filled with a preform of reinforcing fibres. In moulds with complex shapes, the fibres can deviate and compact unevenly during draping, which creates areas of varying permeability that slow or stop the flow of resin.

FiberSIM software provides a design environment for composite parts, including a draping simulation tool that generates accurate data on fibre orientations. The software then provides this data to PAM-RTM software, which models the flow of resin around the preform fibres. The integration of FiberSIM and PAM-RTM software enables engineers to predict and correct potential moulding difficulties without needing to rely on extensive physical prototyping.

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