Fiber orthotropic material properties

Orthotropic Property	Component	Required / Optional	Fiber-reinforced Ply Material value
Mass Density (RHO)		Required	Computed using the Fiber and Matrix values.
Mechanical tab
Young's Modulus (Ei)	E1, E2	Required	Computed using the Fiber and Matrix values.
Poisson's Ratio (NUij)	ν12	Required	Computed using the Fiber and Matrix values.
Shear Modulus (Gij)	G12, G13, G23	Required	Computed using the Fiber and Matrix values.
Strength tab
Tsai-Wu Interaction Coefficient (F12)		Optional	Overridden by the Tsai-Wu Intercation Coefficient (F12) value of the ply material, if defined.Set to the Fiber value, if defined.Set to the Matrix value, if defined.Set to 0.0.
Stress Limits group
**Tension (ST1)**Tension (ST2)	XT, YT	Optional	Overridden by the ply material values, if defined.Computed using the Fiber and Matrix values.Stress limit values for each material are computed using strain limit values, if defined.Set to 0.0.
**Compression (SC1)**Compression (SC2)	XC, YC
Shear (SS12)	S
Strain Limits group
**Tension (XT1)**Tension (XT2)	XTε, YTε	Optional	Overridden by the ply material values, if defined.Computed using the Fiber and Matrix values.Strain limit values for each material are computed using stress limit values, if defined.Set to 0.0.
**Compression (XC1)**Compression (XC2)	XCε, YCε
Shear (XS12)	Sε
Thermal/Electrical tab
**Temperature (TREF)**NOTE		Optional	Set to the Fiber value, if defined.Set to the Matrix value, if defined.Set to 20°C.
Specific Heat (CP)		Optional	Computed using the Fiber and Matrix values.Set to 0.0.
Thermal Expansion Coefficient	α1, α2	Optional	Computed using the Fiber and Matrix values.Set to steel: 1.18e-5 m/m/°C
Thermal Conductivity	K11, K22	Optional	Computed using the Fiber and Matrix values.Set to steel: 45 J/°K/m/sec

Note:

Properties in the 3rd direction such as α3 and ZT , or cross-properties in the 3rd direction such as ν23, are not used by Laminate Composites but can be exported to ANSYS and Abaqus.

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Fiber orthotropic material properties, Simcenter 3D 2021.1 Series

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When the ply material is referenced by a ply, the reference temperature used is the laminate reference temperature.

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