Abstract: A composite module for a vehicle may be both a structural member and include a finished surface. In at least some embodiments, a composite rear shelf module includes a panel with a reinforced multilayer, multi-laminate fiber reinforced plastic composite structure. The panel may include selectively orientated, continuous fiber reinforced thermoplastic composite layers and/or the panel may include discontinuous fiber reinforced thermoplastic reinforcements. The composite rear shelf module may include a show surface film with a class-A surface, eliminating the need for a separate layer of carpet or other material. In some embodiments the module has vehicle attachment members for securing the module to the vehicle body, and the stiffness and mass of the module and the arrangement of the vehicle attachment members and reinforcements are tuned to move the natural modes, or natural frequencies, of the panel outside the working frequency range of any speakers or subwoofers.

Abstract: A composite module for a vehicle may be both a structural member and include a finished surface. In at least some embodiments, a composite rear shelf module includes a panel with a reinforced multilayer, multi-laminate fiber reinforced plastic composite structure. The panel may include selectively orientated, continuous fiber reinforced thermoplastic composite layers and/or the panel may include discontinuous fiber reinforced thermoplastic reinforcements. The composite rear shelf module may include a show surface film with a class-A surface, eliminating the need for a separate layer of carpet or other material. In some embodiments the module has vehicle attachment members for securing the module to the vehicle body, and the stiffness and mass of the module and the arrangement of the vehicle attachment members and reinforcements are tuned to move the natural modes, or natural frequencies, of the panel outside the working frequency range of any speakers or subwoofers.