1. What are the three major families of composites, as defined by their geometry
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Question
1. What are the three major families of composites, as defined by their geometry? 2. What is the primary role of the matrix in a fiber-reinforced composite? What is the primary role of the fibers? 3. How are glass fibers produced? 4. What types of materials are used as reinforcing fibers in fiber-reinforced plastics? 5. What are some possible orientations of the fibers in a fiber-reinforced composite? 6. What is a prepreg? 7. What are some typical products made by filament winding? 8. Discuss some of the concerns when cutting or machining fiber-reinforced composites. 9. and 10. Consider sporting good products that are fabricated from composite materials (skis, snowboards, tennis rackets, golf club shafts, skateboards, surfboards). For 2 specific products, identify the composite materials that are currently being used and the shape-producing methods used to fabricate the products. (remember to cite your sources)Explanation / Answer
1) Three major families of composites are the Ceramic matrix, Material matrix, Polymer matrix.
2) The role of a matrix is to transfer the load to reinforcement and protect reinforcement from abrasion and environmental effects. The role of fiber is to carry the load in the composite system.
3) Glass fibers are made by blending raw materials and melting them in a 3 stage furnace, extruding the molten glass through bushings in the bottom of the forehearth, cooling the filaments with water, and applying a chemical size.
4) The materials used as fibers in fiber reinforcements are usually Glass and Carbin aramid or basalt.
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