a composite drive shaft in which the end adapters are captured in the composite material portion during the process of manufacturing of the composite drive shaft assembly is disclosed . the end adapters include lugs that protrude outward longitudinally to transmit torque , tensile , and compressive forces , and bending moments to the composite material portion and vice versa . to increase the load carrying capacity for axial force and bending moment , the end adapters may have at least one recessed circumferential groove . before the manufacturing process , one or more bonding agents may be applied onto the interface of the end adapter to enhance the performance of engagement between the end adapters and the composite material portion . the composite material portion and end adapters are co - cured to produce a final drive shaft that requires no additional work for assembly .