CREATE A MAT_36E

Generates an LS-DYNA MAT_036 (*MAT_3-PARAMETER_BARLAT) keyword block for anisotropic elastic-plastic sheet materials. Supply material constants and per-direction hardening curves; the worker assembles the formatted keyword text ready for deck inclusion.

When to use

Classification: data.

Tagged: MAT_3-PARAMETER_BARLAT, anisotropic, barlat, hardening, keyword, ls-dyna, mat_036, mat_36.

Inputs

Label ID Type Default Required Description
Material Name material_name scalar   Alphanumeric label written into the MAT_36 keyword header (e.g. ‘DP600_rolled’); leave blank to omit a name field.
Material ID material_i_d scalar   Integer material ID referenced by element sections in the deck; must be unique within the model — leave blank to assign automatically.
Density density scalar   Mass density of the material in model-consistent units (e.g. kg/mm³ or t/mm³); required for any dynamic analysis.
Elastic Modulus elastic_modulus scalar   Young’s modulus in model-consistent pressure units (e.g. MPa); governs elastic stiffness before yielding.
Poissons Ratio poissons_ratio scalar   Poisson’s ratio (dimensionless, 0–0.5); controls lateral strain coupling in the elastic regime — typical steel value is 0.3.
Starting Curve Id starting_curve_id scalar 1   Integer ID assigned to the first load-curve generated for this material; subsequent curves are numbered consecutively from this base — default is 1.
Number Of Dig Points numberof_dig_points scalar 200   Number of discrete points used to digitise each hardening curve when writing the *DEFINE_CURVE entries; default 200 is sufficient for most applications; reduce for smaller deck size.
R00 Hardening Curve r00hardening_curve vector   True stress vs. true plastic strain hardening curve measured (or fitted) in the rolling direction (0°); provided as an XY vector or curve object.
R45 Hardening Curve r45hardening_curve vector   R45 Hardening Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
R90 Hardening Curve r90hardening_curve vector   R90 Hardening Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
Shear Hardening Curve shear_hardening_curve vector   Shear Hardening Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
Bi-Axial Hardening Curve bi-axial_hardening_curve vector   Bi-Axial Hardening Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
R00 Curve r00curve vector   R00 Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
R45 Curve r45curve vector   R45 Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
R90 Curve r90curve vector   R90 Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
R Shear Curve r_shear_curve vector   R Shear Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
R Bi-Axial Curve r_bi-axial_curve vector   R Bi-Axial Curve <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a>
M Barlet Flow Exponent m_barlet_flowexponent scalar 0   M Barlet Flow exponent
AOPT aop_t scalar 2    
XP x_p scalar 0    
YP y_p scalar 0    
ZP z_p scalar 0    
A1 a1 scalar 1    
A2 a2 scalar 0    
A3 a3 scalar 0    
V1 v1 scalar 0    
V2 v2 scalar 0    
V3 v3 scalar 0    
D1 d1 scalar 0    
D2 d2 scalar 0    
D3 d3 scalar 0    
BETA bet_a scalar 0    

Outputs

Label ID Type Description
dynakeyword_mat36e_output_1 dynakeyword_mat36e_output_1 text Formatted LS-DYNA keyword text block containing the *MAT_3-PARAMETER_BARLAT card and associated *DEFINE_CURVE entries, ready to be concatenated into a solver input deck.

Disciplines

  • cae.preprocessing.deck_authoring
  • engineering.material.calibration
  • engineering.material.library

Auto-generated from transformation schema. Worker id: dynakeyword_mat36e. Schema hash: 13b20caee8a0. Hand-curated docs in workerexamples/ override this page when present.