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Composites murali
- 1. Presenter Murali Krishna Eragani Senior Under Graduate Student Dept. of Mechanical Engineering JNTUH College of Engg. Hyderabad COMPOSITE MATERIALS
- 2. Outline of the Presentation What are Composites? Classification of Composites Why Composites? Applications of Composites Case Study on Composites Strength Analysis References
- 3. What are Composites? Two or more chemically distinct materials which when combined have improved properties over the individual materials Constituent Materials Matrix surrounds and supports the reinforcement materials by maintaining their relative positions Reinforcements impart special physical and mechanical properties to enhance the matrix properties
- 5. Particle – Reinforced Composites Concrete: Coarse rock or gravel is embedded in a matrix of cement Gravels provides stiffness and strength while cement acts as the binder to hold the structure together
- 6. Fiber – Reinforced Composites Wood – Cellulose fibers in lignin and hemicellulose matrix Carbon Fiber Reinforced Plastic (CFRP) Glass Fiber Reinforced Plastic (GFRP) Reinforcement: fibers Glass Carbon Boron Matrix materials Polymers Metals Ceramics CFRP GFRP
- 7. Structural Composites Sandwich Panels Low density, honeycomb core Benefit: light weight, large bending stiffness Stacked and Bonded Fiber – Reinforced Sheets Stacking sequence: e.g., 0º/90º or 0/45/90º Benefit: balanced, in-plane stiffness
- 8. Why Composites? Excellent Strength – toWeight Ratio Superior Mechanical Properties ReducedWeight of the Final Components Resistance to Fatigue Resistance to Corossion Design Flexibility Lower Investment in Setting Up of Composites Manufacturing Industry
- 10. Strength – Weight Graph for Various Materials Carbon Fiber Aluminium 304 Stainless Steel Glass Fiber Strength Weight
- 11. Case Study on Composites
- 12. Case Study on Composites (Contd.) 20% more fuel efficiency and 35,000 lbs. lighter
- 13. Composites in the First Smart Phone of India Xiaomi India CEO Manu Jain with Andhra Pradesh CM Chandrababu Naidu at Redmi 2 Prime launch Xiaomi Redmi 2 Prime The Protective Casing of India’s First Manufactured Smart Phone, Xiaomi Redmi 2 Prime is made of Carbon Fiber
- 14. Strength Analysis of Composites Stiffness Matrix Anisotopic Mechanical Properties FEA of AircraftWing
- 15. References [1] Composite Materials – Callister [2] Hexcel Corporation –Aerostrategy [3]The Boeing Company andAirbus [4] Composite Materials – NPTEL [5] Engineering Comosite Materials – Brayn Harris, Institute of Materials, London [6] Indian Express –The English Daily
- 16. THANK YOU