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Every material, when subjected to an arbitrary load, has the potential to change both its volume and its shape. The extent of these changes depends on the nature of the load and the material itself. In this Ansys Innovation Course on “Volumetric and Deviatoric Behavior,” we will present a focused discussion on these components of strain energy and discuss why they constitute an important aspect in many engineering designs. We will introduce formal definitions and mathematical formulations used for quantifying these characteristics. We will also study some practical examples to help reinforce an understanding of the theories and their physical meaning. Upon completion of this course, students should be able to use this information to choose or design the most optimal class of materials based on the volumetric behavior for their application.