Comparative Study on Drawability of CR340/CFRP Composites by Using Theoretical and Experimental Methods

摘要

In this study, a hybrid composite material was fabricated by stacking carbon fiber-reinforced plastic on CR340 plates to increase the specific strength and specific stiffness, compared to thick boron steel plates or dual-phase steels. A deep drawing test was conducted for this hybrid composite material, using various blank holding force, to assess its formability and potential use in vehicle parts. After experiment, the results of formability were compared with analysis data by using ABAQUS explicit. The formability was then assessed according to the blank holding force and friction coefficient. The friction coefficient decreased with increasing Bf. After deep drawing, the epoxy flow behavior was examined Problems with the metal/CFRP hybrid composites were investigated through macroscopic and microscopic observations.