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composite materials in aerospace application seminar
This presentation discusses composite materials used in aerospace applications. It begins with an introduction to composite materials, their classification, and advantages for aerospace. Composites provide benefits like high strength to weight ratio, creep resistance, and toughness. Examples are given of composites used in Boeing aircraft like the 777 and 787, which contain 12% and over 50% composites respectively, especially carbon fiber reinforced plastics. The presentation concludes that composites will continue to play an important role in aircraft due to properties like low weight and durability.
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composite materials in aerospace application seminar
- 1. UNIVERSITY OF HYDERABAD SCHOOL OF ENGINEERING SCIENCES AND TECHNOLOGY COMPOSITE MATERIALS IN AEROSPACE APPLICATIONS PRESENTATION BY SURESH BEERA 12ETMM11 I M.Tech MATERIALS ENGINEERING 10/24/14 1
- 2. Introduction toComposite Materials Classification of composite Application of composites in aerospace Advantages & Disadvantages of composites Conclusions References 10/24/14 2
- 3. 3 What arecomposite materials (definition) ? Composite material is a material composed of two or more distinct phases(matrix phase and dispersed phase) which are chemically & physically different Composites are used because overall properties of the composites are superior to those of the individual components 10/24/14
- 4. 4 The primaryphase, having a continuous character , is called matrix. Matrix is usually more ductile and less hard phase. It holds the dispersed phase and shares a load with it. The second phase (or phases) which is embedded in the matrix is called dispersed phase. Dispersed phase is usually stronger than the matrix, therefore it is called reinforcing phase 10/24/14
- 5. 5 Composites Particulatereinforced Fiber reinforced Structural Laminates Sandwich Continuous Discontinuous Panels Large Particle Dispersion Strengthened Aligned Random 10/24/14
- 6. 6 The followingare some of the reasons why composites are selected for aerospace applications: • High strength to weight ratio (low density high tensile strength) • High creep resistance • High tensile strength at elevated temperatures • High toughness 10/24/14
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- 9. Thermoset resins ◦ polyester , Epoxy,Phenol,Polyimide Thermoplastics PolyPhenyleneSulifide(PPS), PolyEtherEtherKetone(PEEK), PolyEtherimide (PEI) 10/24/14 9
- 10. Metals (aluminium,titanium etc.) Glass Ceramics Hybrid ◦ Carbon aramid reinforced epoxy ◦ Glass Carbon reinforced epoxy 10/24/14 10
- 11. 10/24/14 11 TheBoeing 777 is a long-range wide-body twin-engine jet airliner manufactured by Boeing commercial airplanes. It is the world's largest twinjet and has a capacity of over 300 passengers, with a range of 5,235 to 9,380 nautical miles (9,695 to 17,370 km) .12% composites are used
- 12. The Boeing 787Dreamliner is a long-range, mid-size wide-body, twin- engine jet airliner developed by Boeing commercial airplanes. Each 787 contains Approximately 32,000 kg of carbon fiber reinforced plastic (CFRP), made with 23 tons of carbon fiber. Carbon fiber composites have a higher strength-to-weight ratio than traditional aircraft materials, and help make the 787 a lighter aircraft. Composites are used on fuselage, wings, tail, doors, and interior. 10/24/14 12
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- 15. composite materialswill play an increasingly significant role in aerospace application B787,A350-XWB used more than 50% composite materials With their unique combination of properties such as low weight, high strength, low flammability, smoke density and heat release, non-toxicity and durability, composites are ideal for many aerospace applications, both for interior and exterior components. 10/24/14 15
- 16. Mainly fromReference 1: “Low-cost composite materials and structures for aircraft applications”, Doe R.B., Starnes, J.H., Holzwarth, R.C.,May 2001. Callister’s Materials science andengineering,wiley india publication Composite materials for aerospace applications.P D MANGALGIRI Aeronautical Development Agency, Vimanapura PO, Bangalore 560017, India 10/24/14 16
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