The material library in ABAQUS allows most engineering materials to be modeled, including metals, plastics, rubbers, foams, composites, granular soils, rocks, and plain and reinforced concrete. This guide discusses only three of the most commonly used material models: linear elasticity, metal plasticity, and rubber elasticity. All of the material models are discussed in detail in Part IV, “Materials,” of the ABAQUS Analysis User's Manual.