Transcription of Introduction to Composite Materials
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Introduction to Composite Materials
Chapter 1 Introduction to Composite MaterialsStructural Composite Materials Copyright 2010, ASM International Campbell All rights 1 Introduction to Composite MaterialsA Composite material can be defined as a combination of two or more Materials that results in better properties than those of the indi-vidual components used alone. In contrast to metallic alloys, each material retains its separate chemical, physical, and mechanical properties. the two constituents are a reinforcement and a matrix. the main advantages of Composite ma-terials are their high strength and stiffness, com-bined with low density, when compared with bulk Materials , allowing for a weight reduction in the finished reinforcing phase provides the strength and stiffness. In most cases, the reinforcement is harder, stronger, and stiffer than the matrix. the reinforcement is usually a fiber or a particulate.
2 / Structural Composite Materials strength of discontinuous-fiber composites can approach that of continuous-fiber composites if their aspect ratios are great enough and they are aligned, but it is difficult in practice to main-tain good alignment with discontinuous fibers. Discontinuous-fiber composites are normally
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