Abstract: A modular composite structure containing multiple individual composite structures attached together. The individual composite structures form sections of a vehicle component. The composite structures are lightweight and made of materials that can function to absorb energy or attenuate vibration or noise. The composite structures contain a core material adhered to a fiber layer and a fiber reinforcement region for improving the strength and stiffness of the modular composite structure. The modular composite structure can include multiple floor pan segments that can be attached to a central composite structure that can be a utility tunnel or housing.

Abstract: A modular composite structure containing multiple individual composite structures attached together. The individual composite structures form sections of a vehicle component. The composite structures are lightweight and made of materials that can function to absorb energy or attenuate vibration or noise. The composite structures contain a core material adhered to a fiber layer and a fiber reinforcement region for improving the strength and stiffness of the modular composite structure. The modular composite structure can include multiple floor pan segments that can be attached to a central composite structure that can be a utility tunnel or housing.

Abstract: A modular composite structure containing multiple individual composite structures attached together. The individual composite structures form sections of a vehicle component. The composite structures are lightweight and made of materials that can function to absorb energy or attenuate vibration or noise. The composite structures contain a core material adhered to a fiber layer and a fiber reinforcement region for improving the strength and stiffness of the modular composite structure. The modular composite structure can include multiple floor pan segments that can be attached to a central composite structure that can be a utility tunnel or housing.

Abstract: A modular composite structure containing multiple individual composite structures attached together. The individual composite structures form sections of a vehicle component. The composite structures are lightweight and made of materials that can function to absorb energy or attenuate vibration or noise. The composite structures contain a core material adhered to a fiber layer and a fiber reinforcement region for improving the strength and stiffness of the modular composite structure. The modular composite structure can include multiple floor pan segments that can be attached to a central composite structure that can be a utility tunnel or housing.

Abstract: A chuck and tool assembly in which the tool is formed with a continuous axially extending flat surface along its elongated shank and has axially spaced depressions which narrow away from that surface. The holder body has an axial bore receiving the shank and a pair of screws spaced apart axially so that when one of the screws engages in one of the depressions, the other screw bears upon a flat surface between two depressions to lock the tool in the holder body.