This book provides an introduction to the micromechanics of
fiber-reinforced laminae, which deals with the prediction of the
macroscopic mechanical lamina properties based on the mechanical
properties of the constituents, i.e., fibers and matrix.
Composite materials, especially fiber-reinforced composites, are gaining
increasing importance since they can overcome the limits of many
structures based on classical metals. Particularly, the combination of a
matrix with fibers provides far better properties than the components
alone. Despite their importance, many engineering degree programs do not
treat the mechanical behavior of this class of advanced structured
materials in detail, at least on the Bachelor degree level. Thus, some
engineers are not able to thoroughly apply and introduce these modern
engineering materials in their design process.
The focus is on unidirectional lamina which can be described based on
orthotropic constitutive equations. Three classical approaches to
predict the elastic properties, i.e., the mechanics of materials
approach, the elasticity solutions with contiguity after Tsai, and the
Halpin-Tsai relationships, are presented. The quality of each prediction
is benchmarked based on two different sets of experimental values. The
book concludes with optimized representations, which were obtained based
on the least square approach for the used experimental data sets.