This chapter discusses new material models or changes to existing material models. It provides an overview of the following enhancements:

• “Mohr-Coulomb plasticity in Abaqus/Explicit,” Section 7.1

• “Critical state (clay) plasticity model in Abaqus/Explicit,” Section 7.2

• “Cast iron plasticity in Abaqus/Explicit,” Section 7.3

• “Viscoelasticity with anisotropic elasticity in Abaqus/Explicit,” Section 7.4

• “Transferring results with concrete damaged plasticity,” Section 7.5

• “Finite-strain viscoelasticity,” Section 7.6

• “Finite-strain viscoelasticity with Mullins effect,” Section 7.7

• “Field expansion,” Section 7.8

• “Viscous dissipation in a coupled analysis,” Section 7.9

• “Low-density foam materials in Abaqus/CAE,” Section 7.10

• “Combining equations of state with pressure-dependent shear plasticity in Abaqus/Explicit,” Section 7.11

• “Johnson-Cook plasticity in Abaqus/Standard,” Section 7.12

• “Enhancements to Johnson-Cook strain rate dependence,” Section 7.13

• “Tension cutoff,” Section 7.14

• “Ignition and growth equation of state,” Section 7.15

• “Specifying a constant pressure specific heat in Abaqus/CFD,” Section 7.16