Abstract: Methods for generating a flat pattern for a composite ply. A method includes receiving a tool model and a ply coverage, wherein the ply coverage defines a plurality of plies, a fiber orientation for each of the plies, and a boundary for each of the plies, determining one or more subset regions on the tool model based on the boundaries from the ply coverage, creating a merged ply combining the plies and aligning the fiber orientations, defining staging instances of the merged ply for each ply covering a subset region, determining a laydown order of the staging instances, running a draping simulation using the laydown order to solve the staging instances, generating a flat pattern from the draping simulation, and storing the flat pattern of the composite ply.

Abstract: Methods for generating a flat pattern for a composite ply. A method includes receiving a tool model and a ply coverage, wherein the ply coverage defines a plurality of plies, a fiber orientation for each of the plies, and a boundary for each of the plies, determining one or more subset regions on the tool model based on the boundaries from the ply coverage, creating a merged ply combining the plies and aligning the fiber orientations, defining staging instances of the merged ply for each ply covering a subset region, determining a laydown order of the staging instances, running a draping simulation using the laydown order to solve the staging instances, generating a flat pattern from the draping simulation, and storing the flat pattern of the composite ply.

Abstract: Methods for generating ramp structures in composite part models and corresponding systems and computer-readable mediums. A method includes receiving a model of a composite part, the model including a topological definition for the composite part that has a plurality of defined constant-thickness areas. The method includes determining ramp areas from the topological definition, and determining adjacency relationships between constant-thickness areas and ramp areas. The method includes determining ramp structure points, constant rails, and ramp rails for the model. The method includes creating a set of normal curves connecting corresponding ramp structure points of on-surface geometries and offset geometries of the model. The method includes producing offset geometries corresponding to each ramp rail and generating a ramp surface for each ramp area. The method includes storing the model including the generated ramp surfaces.