MTRL 280 Lecture 11: 11. Material Selection in Design
14 Apr 2016
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Document Summary
Explain the benefits of designing a hybrid material. A combination of two or more materials in a predetermined configuration, relative volume, and scale, optimally serving a specific engineering purpose. 4 families: composite = made up of two materials; reinforcement and a matrix. Bulk properties are an average of the properties of the reinforcement and the matrix: sandwich = one material acts as the outer face, while the other material acts as a core. The core is usually a low density material, while the outside material is strong & stiff. Therefore, the sandwich gives a better stiffness in bending per unit mass. 3. lattice = similar to foams in that material is composed with material and air. However, it is different in a sense that a lattice"s structure is highly tailored. The product is a very light, stiff structure that can absorb energy: segment = produced by combining individual structural units together. Can be constructed in one, two, or three-dimensions.
