tb

Mapdl.tb(lab='', mat='', ntemp='', npts='', tbopt='', eosopt='', funcname='', **kwargs)

APDL Command: TB

Activates a data table for material properties or special element input.

Parameters
lab

Material model data table type:

AFDM

Acoustic frequency-dependent material.

AHYPER

Anisotropic hyperelasticity.

ANEL

Anisotropic elasticity.

ANISO

Anisotropic plasticity.

BB

Bergstrom-Boyce.

BH

Magnetic field data.

BISO

Bilinear isotropic hardening using von Mises or Hill plasticity.

BKIN

Bilinear kinematic hardening using von Mises or Hill plasticity.

CAST

Cast iron.

CDM

Mullins effect (for isotropic hyperelasticity models).

CGCR

Fracture criterion for crack-growth simulation (CGROW).

CHABOCHE

Chaboche nonlinear kinematic hardening using von Mises or Hill plasticity.

COMP

Composite damage (explicit dynamic analysis).

CONCR

Concrete element data.

CREEP

Creep. Pure creep, creep with isotropic hardening plasticity, or creep with kinematic hardening plasticity using both von Mises or Hill potentials.

CTE

Secant coefficient of thermal expansion.

CZM

Cohesive zone.

DISCRETE

Explicit spring-damper (discrete).

DMGE

Damage evolution law.

DMGI

Damage initiation criteria.

DP

Classic Drucker-Prager plasticity.

DPER

Anisotropic electric permittivity.

EDP

Extended Drucker-Prager (for granular materials such as rock, concrete, soil, ceramics and other pressure-dependent materials).

ELASTIC

Elasticity. For full harmonic analyses, properties can be defined as frequency- or temperature-dependent (TBFIELD).

EOS

Equation of state (explicit dynamic analysis).

EVISC

Viscoelastic element data (explicit dynamic analysis).

EXPE

Experimental data.

FCON

Fluid conductance data (explicit dynamic analysis).

FCLI

Material strength limits for calculating failure criteria.

FLUID

Fluid.

FOAM

Foam (explicit dynamic analysis).

FRIC

Coefficient of friction based on Coulomb’s Law or user-defined friction.

GASKET

Gasket.

GCAP

Geological cap (explicit dynamic analysis).

GURSON

Gurson pressure-dependent plasticity for porous metals.

HFLM

Film coefficient data.

HILL

Hill anisotropy. When combined with other material options, simulates plasticity, viscoplasticity, and creep – all with the Hill potential.

HONEY

Honeycomb (explicit dynamic analysis).

HYPER

Hyperelasticity material models (Arruda-Boyce, Blatz-Ko, Extended Tube, Gent, Mooney-Rivlin [default], Neo-Hookean, Ogden, Ogden Foam, Polynomial Form, Response Function, Yeoh, and user- defined).

INTER

Contact interaction.

JOIN

Joint (linear and nonlinear elastic stiffness, linear and nonlinear damping, and frictional behavior).

JROCK

Jointed rock.

MC

Mohr-Coulomb.

MELAS

Multilinear elasticity .

MIGR

Migration.

MPLANE

Microplane.

NLISO

Voce isotropic hardening law (or power law) for modeling nonlinear isotropic hardening using von Mises or Hill plasticity.

PELAS

Porous elasticity.

PERF

Perforated material for acoustics; equivalent fluid model of perforated media, poroelastic material model, and transfer admittance matrix.

PIEZ

Piezoelectric matrix.

PLASTIC

Nonlinear plasticity.

PM

Porous media. Coupled pore-fluid diffusion and structural model of porous media.

PRONY

Prony series constants for viscoelastic materials.

PZRS

Piezoresistivity.

RATE

Rate-dependent plasticity (viscoplasticity) when combined with the BISO, NLISO or PLASTIC material options, or rate-dependent anisotropic plasticity (anisotropic viscoplasticity) when combined with the HILL and BISO, NLISO or PLASTIC material options.

The exponential visco-hardening option includes an explicit function for directly defining static yield stresses of materials. The Anand unified plasticity option requires no combination with other material models.

SDAMP

Material damping coefficients.

SHIFT

Shift function for viscoelastic materials.

SMA

Shape memory alloy for simulating hysteresis superelastic behavior with no performance degradation. Plane stress is not supported.

SOIL

Soil models.

STATE

User-defined state variables. Valid with TB,USER and used with either the UserMat or UserMatTh subroutine. Also valid with TB,CREEP (when TBOPT = 100) and used with the UserCreep subroutine.

SWELL

Swelling strain function.

TNM

Three-network model for viscoplastic materials.

THERM

Thermal properties.

USER

User-defined material model (general-purpose except for incompressible material models) or thermal material model.

WEAR

Contact surface wear.

XTAL

Crystal plasticity for elasto-viscoplastic crystalline materials.

MATID

Material reference identification number. Valid value is any number n, where 0 < n < 100,000. Default = 1.

NTEMP

The number of temperatures for which data will be provided (if applicable). Specify temperatures via the TBTEMP command.

NPTS

For most labels where NPTS is defined, the number of data points to be specified for a given temperature. Define data points via the TBDATA or TBPT commands.

FuncName

The name of the function to be used (entered as %tabname%, where tabname is the name of the table created by the Function Tool). Valid only when Lab = JOIN (joint element material) and nonlinear stiffness or damping are specified on the TBOPT field (see “JOIN – Joint Element Specifications”). The function must be predefined via the Function Tool. To learn more about how to create a function, see Using the Function Tool in the Basic Analysis Guide

**kwargs

Extra arguments to be passed to Mapdl.run.