ABSTRACT
The previous chapters have considered constitutive equations that deal primarily with two different types of material behavior: elastic response of solids and viscous flow of fluids. Examples of materials that behave elastically under modest loading, and at moderate temperatures, are metals such as steel, aluminum, and copper, certain polymers, and even cortical bone. Examples of viscous flow may involve a variety of fluids ranging from water to polymers under certain conditions of temperature and loading.
