Abstract
By their very nature, composites are nonhomogeneous bodies, consisting of reinforcements (such as the fibers or particles), the surrounding matrix (a polymer, metal, or ceramic), and a coupling agent which bonds them together. However, the scale of the reinforcement is usually quite small (a few mils in nominal diameter), so that, from the standpoint of engineering design as well as experimental mechanics, it is convenient to consider an individual layer of composite to be macroscopically homogeneous. This is analogous to the usual consideration of metallic structural materials, which are actually crystalline aggregates, as homogeneous materials. However, in the case of composites, there is one fundamental difference: the macroscopic behavior is usually directionally dependent. (The exception is particulate composites, which will not be mentioned further; they can often be considered to be macroscopically isotropic). A material having directionally dependent behavior is said to be anisotropic, i.e., nonisotropic.
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© 1989 Society for Experimental Mechanics
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Bert, C.W. (1989). Anisotropie-Material Behavior. In: Pendleton, R.L., Tuttle, M.E. (eds) Manual on Experimental Methods for Mechanical Testing of Composites. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1129-1_2
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DOI: https://doi.org/10.1007/978-94-009-1129-1_2
Publisher Name: Springer, Dordrecht
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