Isotropic material properties for 2D and 3D elements

The following table shows which properties are required by Laminate Composites and which values are assumed for undefined optional properties.

Isotropic Property	Required / Optional	If undefined
Mass Density (RHO)	Required
Mechanical page
Young's Modulus (E)	Two of these three properties are required.	The third property is computed using the following relationship: G = E/(2(1+ν))
Poisson's Ratio (NU), ν
Shear Modulus (G)
Strength page
Tsai-Wu Interaction Coefficient (F12)	Optional	Set to 0.0.
Stress Limits group
Tension (ST)	Optional	Computed using the strain limit values, if defined.Set to 0.0.
Compression (SC)
Shear (SS)
Strain Limits group
Tension (XT)	Optional	Computed using the stress limit values, if defined.Set to 0.0.
Compression (XC)
Shear (XS)
Thermal page
Temperature (TREF)	Optional	Overridden by the laminate Reference Temperature, if defined.
Thermal Expansion Coefficient (A)	Optional	Set to steel: 1.18e-5 m/m/°C
Thermal Conductivity (K)	Optional	Set to steel: 45 J/°K/m/sec
Specific Heat (CP)	Optional	Set to 0.0.

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Orthotropic material properties for 2D elements

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Matrix and fiber isotropic material properties

Fiber orthotropic material properties

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Isotropic material properties for 2D and 3D elements, Simcenter 3D 2021.1 Series

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