9.4. Logarithmic Interpolation and Scaling

Specified material parameters (TBDATA) can be interpolated (TBIN) in both the linear scale and natural log scale. Logarithmic interpolation is available for material table data specified as a function of any single field variable type.

Supported material data-table types (TB) include: AFDM, AHYPER, BB, CGCR, CONC, CREEP, CTE, CZM, DMGE, DMGI, EDP, ELASTIC, FCLI, FLUID, FRIC, HYPER, INTER, JROCK, MC, PELAS, PERF, PM, RATE, SDAMP, SOIL, SWELL, THERM, WEAR

Example 9.2: Forcing the Interpolation to a Scale of Your Choice

TB,ELASTIC,1
! Interpolate Young’s modulus in LOG-LINEAR SCALE
TBIN,SCAL,UF01,1,LOG,LINE
! Interpolate Poisson’s Ratio in LOG-LOG SCALE
TBIN,SCAL,UF01,2,LOG,LOG
TBFIELD,UF01,0.0
TBDATA,1,1e6,0.3
TBFIELD,UF01,1.0
TBDATA,1,1e7,0.4

For more information, see Interpolation Algorithms.