Hybrid Composite System Correlation of Experimental Results with Computational Model for Mixed Material Hybrid Composite System Gurpinder Singh Dhaliwal , Golam Newaz Department of Mechanical Engineering, Wayne State University , Detroit, 48201 1.Introduction Finite Element Computational Model Sample Type (B) Typical Experimental Load vs. Displacement Behavior Graphs Hybrid Composite laminates have been widely regarded as a family of highly damage tolerant materials with a high weight saving potential . The main hindrance to full utilization of Hybrid Composite System in automotive industry is their Structural Response as compared to monolithic materials like Steel or Aluminum . 2.Objective Damage Progression on CRF-AL without Epoxy Resin Sample Sample Type (C) The main goal of this research is to investigate the Stiffness, Weight Savings, Load carrying capacity , failure Modes of Al/CRF Hybrid Composite System and validate the Experimental results with Computational Model 3. Method Three point Flexural Test Method Weight Savings as Compared to Reference Hat Section Beam The load displacement Graph Shows that Flexural Stiffness of Hybrid system bonded with epoxy resin is close to monolithic Aluminum Beam of same thickness Weight of Carbon fiber-Aluminum and Aluminum Samples Sample Sample Type Weight (g) Weight Saving As Compared To reference Sample (%) 1 Aluminum Reference Sample With Thickness 1.3 mm 106   2 Carbon fiber-Aluminum Sample with NO Epoxy Resin thickness 1.3 mm 77 26.41 79 Carbon fiber-Aluminum Sample with Epoxy Resin thickness 1.3 mm 24.52 81 3 80 Typical Failure modes of Hybrid Composite Beams Damage Progression on CRF-AL with Epoxy Resin Sample Sample Type (A) 4.Results Description of hat section beams studied Sample Category Sample type A Aluminum Hat Section with Thickness =1.3mm (Reference Sample) B Woven Carbon Fibre- Aluminum With No Resin In Bonding ( Carbon Fibre Thickness=0.8mm ,Aluminum Thickness 0.5mm) C Woven Carbon Fibre- Aluminum Adhesively Bonded by Epoxy Resin 5.Discussion The test results indicate that Flexural Stiffness of Hybrid Composite system is dependent on the Bond between Aluminum Sheet and CRF plies. Load Carrying capacity of hybrid beam bonded with epoxy resin is better than without epoxy resin