| Acoustic Absorption |
Describes acoustic absorption by specifying the
magnitude and phase angle at different frequencies. |
| Anisotropic Hyperelasticity |
Describes highly anisotropic nonlinear elastic
behavior. |
| Anneal Temperature |
Specifies the annealing temperature for an
elastic-plastic material. When the temperature of a material point exceeds its
annealing temperature, the app assumes that the material point loses its hardening
memory. |
| Brittle Cracking |
Specifies brittle cracking primarily to model
reinforced concrete structures, but can also be used for plain concrete, ceramics,
and brittle rock. |
| Bulk Modulus |
Defines a material's resistance to
compression. |
| Cap Plasticity (Modified Drucker-Prager) |
Simulates the constitutive response of cohesive
geological materials. |
| Cast Iron Plasticity |
Describes the mechanical behavior of gray cast
iron, a material whose microstructure consists of graphite flakes in a steel matrix.
The model requires the definition of a yield behavior and two separate hardening
mechanisms (compression and tension.) |
| Clay Exponential Plasticity |
Simulates the mechanical response of sands or
materials without cohesion. |
| Clay Tabular Plasticity |
Simulate the mechanical response of sands or
materials without cohesion. |
| Concrete Damaged Plasticity |
Models concrete and other quasi-brittle materials
in beams, trusses, shells, and solids. |
| Conductivity |
Describes the rate at which heat flows across a
temperature gradient in a material. |
| Creep |
Defines the tendency of materials to deform
plastically under high stresses over long periods of time, even if those stresses
are well below the yield stress of the material. |
| Crushable Foam |
Simulate crushable foams, which are typically used
as energy absorption structures. |
| Damage (ductile metals) |
Specifies damage initiation for ductile metals.
The following modes are available: |
| Damage (fiber-reinforced composites) |
Specifies parameters that predict the onset of
damage and model progressive damage and failure in fiber-reinforced composites.
Models include: |
| Damage Evolution |
Specifies how the material degrades after one or
more damage initiation criteria are met. |
| Damping |
Defines damping behavior using the mass
proportional damping factor, the stiffness proportional damping factor, and the
structural damping factor. |
| Deformation Plasticity |
Defines parameters for the deformation theory
Ramberg-Osgood plasticity model, which is primarily intended for use in developing
fully plastic solutions for fracture mechanics applications in ductile
metals. |
| Density |
Specifies the mass per unit volume of a
material. |
| Dependent Variable |
Defines solution-dependent state variables that
evolve with the solution of an analysis. |
| Dielectric |
Defines the relationship between the electric
displacement and electric potential gradient for a piezoelectric material. |
| EOS (Equation of State) |
Defines a hydrodynamic model in which the
volumetric pressure response is determined by an equation of state where the
pressure depends on the density and specific energy per unit mass. |
| Introduction to Linear Elasticity |
Describes linear elasticity, the ability of a
material to recover its original shape when applied forces are removed. |
| Electrical: Electric Conductivity |
Defines a material's electrical conductivity.
|
| Expansion |
Describes the induction of mechanical strains in
material in response to changes in temperature (and, in the case of fluid flow
analyses, buoyancy strains as well). |
| Extended Drucker-Prager |
Describes the Drucker-Prager material model, an
elastic-plastic constitutive behavior commonly used to model frictional
materials. |
| Fiber Reinforcement |
Specifies the properties of one or more fiber
constituents in a fiber-reinforced composite material. |
| Gasket behaviors |
The following gasket-related material behaviors
are available: |
| Hyperelasticity behaviors |
|
| Hyperfoam |
Describes a cellular solid whose porosity permits
very large volumetric changes. |
| Hypoelasticity |
Describes an isotropic linear elastic model valid
for small elastic strains. |
| Inelastic Heat Fraction |
Specifies the fraction of energy generated by
inelastic dissipation (plastic deformation) is converted into thermal
energy. |
| Electrical Thermal Mechanical: Joule Heat Fraction |
Joule heating arises when the energy dissipated by
an electrical current flowing through a conductor is converted into thermal energy.
|
| Latent Heat |
Models large changes in internal energy during
phase change of the material. |
| Low-Density Foam |
Models highly compressible elastomeric foams with
significant rate-sensitive behavior, such as polyurethane foam. |
| Mohr-Coulomb |
Simulates the behavior of granular materials, like
soils, under monotonic loading. |
| Mullins Effect |
Models the stress softening of filled rubber
elastomers under quasi-static cyclic loading. |
| Nitinol (Superelasticity) |
Model Nitinol-type materials that undergo
solid-solid, martensitic phase transformation and exhibit superelastic
response. |
| Nonlinear Viscoelasticity |
The nonlinear viscoelastic material model, also
referred to as a parallel rheological framework, is intended for modeling polymers
and elastomeric materials that exhibit permanent set and nonlinear viscous behavior
and undergo large deformations. |
| Piezoelectricity |
Defines the relationship between the stress in a
piezoelectric material and an electric potential gradient. |
| Plasticity |
Describes the classical metal plasticity for
elastic-plastic materials that use the Mises or Hill yield surface. |
| Porous media |
The following material options describe porous
media behavior:
- Pore Fluid Density: defines the mass per unit volume of the fluid in a porous medium.
- Porous Bulk Moduli: defines the bulk modulus of solid grains and a permeating fluid such that
their compressibility can be considered in the analysis of the porous medium.
- Porous Media Permeability: defines the permeability for pore fluid flow in problems involving seepage
and porous material.
- Porous Media Sorption: defines absorption and exsorption behaviors of a partially saturated porous
medium in the analysis of coupled wetting liquid flow and porous medium stress.
- Porous Media Swelling: defines the saturation-driven volumetric swelling of the solid skeleton of a
porous medium in partially saturated flow conditions.
- Porous Media Gel Growth: allows for modeling of the growth of gel particles that swell and trap
wetting liquid in a partially saturated porous medium.
- Pore Fluid Density: defines the mass per unit volume of the fluid in a porous medium.
- Pore Fluid Conductivity: defines the thermal conductivity for the wetting fluid in a porous medium.
- Pore Fluid Specific Heat: defines the specific heat for the wetting fluid in a porous medium.
- Pore Fluid Latent Heat: defines the changes in internal energy during phase change of the pore fluid
material.
|
| Soft Rock Plasticity |
Simulates the mechanical response of soft rock and
weakly consolidated sands. |
| User-Defined Material Properties |
Defines property tables and parameter tables in
material definitions and make these tables available automatically in all
material-related user subroutines. |
| Viscoelasticity |
The following options are available for defining viscoelasticity:
- Viscoelasticity: defines linear viscoelasticity, a behavior in which the initial response to
an applied stress is elastic, but over time the material exhibits viscous
response and the strain reduces.
- Nonlinear Viscoelasticity: defines nonlinear viscoelasticity, also referred to as a parallel
rheological framework, which is intended for modeling polymers and elastomeric
materials that exhibit permanent set and nonlinear viscous behavior and undergo
large deformations.
|
| Volumetric Creep Swelling |
Defines parameters to include volumetric creep
swelling. |
| Volumetric Drag |
Models the effects of dissipation of energy and
attenuation of acoustic waves in an acoustic medium. |