There’s No “Hard Core” with FiberSIM™’s Laminate Projection Capabilities
There are unique challenges that arise when designing composite parts containing core. FiberSIM®’s Laminate Projection (also referred to as Sequence-Based Projection) capabilities provide a flexible, quick and easy way to design multi-laminate composite parts containing core.
Parts with core contain several components that need to be generated, including the outer mold line (OML) surface, undercore plies, overcore plies and an inner mold line (IML) surface. The overcore is then used to develop ply shapes and flat patterns that are placed over the core. Since designers usually do not know initially which plies will reside on the overcore surface, users can simply obtain gage data from Stress and define the part based on this data.
The Laminate Projection tool allows you to project the necessary plies to the overcore surface to obtain accurate flat patterns. The tool accounts for the changes that must be recognized by the designer in order to develop flat patterns that take the topology into account. The overcore laminate defines the shape each ply will have to cover immediately following placement of the core object. To properly auto-project the ply boundaries, users must simply sequence the laminates and plies in the correct layup order.
The process starts off by defining plies and a virtual core on an OML tool surface using a single OML laminate.
The user can create an overcore surface by using the ply-based offset for a ply-based model. Once the overcore surface is created, the user creates an overcore laminate and re-sequences the plies and core.
By simply going to the Laminate tab in the Options menu and selecting the Sequence-Based Projection, it will move the appropriate ply curves to the new surface, requiring no re-work of the geometry.
When running producibility scenarios on the overcore plies, the user will be able to generate flat patterns that take the overcore topology into account.
The fiber paths conform to the topological changes instead of simply residing on the base laminate surface.
Again notice that the fiber paths for all the plies of Sequence A and Sequence B reside on their respective parent laminate surfaces and adequately take into account the extra material required for the above core plies.
Laminate Projection is one of many FiberSIM tools that enable a flexible and effective approach to designing composite parts.
If you have any further questions regarding the use of Laminate Projection and how it can help you with your designs, please do not hesitate to contact the VISTAGY Product Support team:
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