The natural bending frequency of a torque transmission shaft can be increased without reducing the torque transmission capability if the shaft is made using both carbon fiber composite and aluminum: the former increases the natural bending frequency and the latter sustains the applied torque. The high natural bending frequency of a shaft makes it possible to manufacture the drive shaft of passenger cars in one piece. In this work, a hybrid one-piece drive shaft composed of carbon fiber- epoxy composite and aluminum tube was manufactured by co-curing the carbon fiber on the aluminum tube.
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