1 / 11

Lecture 2

ADVANCED COMPOSITES. Fabrication Technology Autoclave Molding Filament Winding Pultrusion Resin Transfer Molding (RTM). Lecture 2. Polymer Matrix vs. Advanced Composites. Polymer Matrix : High strength, stiffness fibers in weak matrix

shantell-allen
Download Presentation

Lecture 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ADVANCED COMPOSITES • Fabrication Technology • Autoclave Molding • Filament Winding • Pultrusion • Resin Transfer Molding (RTM) Lecture 2

  2. Polymer Matrix vs. Advanced Composites Polymer Matrix: High strength, stiffness fibers in weak matrix Advanced Composites: Carbon (C)/Graphite (Gr) Kevlar (K), Boron (B), Glass (Gl) • Reinforced Plastics: • Mostly E-glass fibers. • Discontinuous./ continuous reinforcement • Relatively low moduli • Advanced Composites • Carbon (C)/Graphite (Gr) Kevlar (K), Boron (B), Glass (Gl) • Continuous reinforcement • Relatively high moduli

  3. Material Density (g/cc) Tensile Modulus (Msi) Tensile Strength (Ksi) Eng. Plastic Reinf’d Eng Plastic Wood (0) Steel (low c) Al (6061-T6) HTS (Gr/Ep(0) 1.0-1.4 1.2- 1.6 0.5 8.0 2.8 1.6 0.3-0.6 0.6-2.0 1.5 30 10 21 6-20 8-30 15 45 45 180 Advantages Design flexibility not present in metals; in metal only material selection BUT in composites designer/creator.

  4. Design Flexibility

  5. Applications • Aircraft components, wings, fuselage • Empennage, substructure, interiors • Helicopter components • Satellite • Missiles • Body panels, interiors, engine brackets • Drive shaft • Springs • Boats, appliances housings, toys • Sporting goods • Pressure vessels • Pipe • Drilling rigs Aerospace Automotive Consumer Industrial

  6. Unidirectional vs. Cross-plied

  7. Cont.

  8. The Payoffs • Lower weight • Higher speed • Increased load capacity or range • Better fuel economy • Improved maneuverability and response • Longer lifetime (corrosion, fatigue, stress rupture) • Dimensional stability • Lower initial and life cycle cost

  9. Assignments • (Due 10-6, Mid-term Week) • Make a search in the net for (Advanced Composites). • Find three papers. • Make a summary for each. • Submit both the paper and the summery. (Due 24- 7, Finals Week) Project: Make a group of four Pick up a project; make a report and presentation.

  10. The project should include: • Background • Objectives • Functional design, Design specifications, Design criteria and Deliverables • Preliminary designs • Material selection • Assembly • Fabrication • Durability/environmental exposure/ repair • Costing and certification • D&R • Conclusion

  11. Quiz1

More Related