Orthotropic Material dialog box (Simcenter Samcef Structure)

These options apply when you select Samcef Orthotropic Structure, Samcef Orthotropic Bilinear Structure, or Samcef Orthotropic Linear Damage Structure from the Property View list for an Orthotropic material.

Properties
Mass Density (RHO).	Lets you define the mass density. In the Samcef .MAT command, this corresponds to the M parameter.For more information, see the Samcef linear elastic material page.

Mechanical page

Appears when you select when you select Samcef Orthotropic Structure, Samcef Orthotropic Bilinear Structure, or Samcef Orthotropic Linear Damage Structure from the Property View list.

Young's Modulus (Ei)
Young's Modulus (E1), Young's Modulus (E2), and Young's Modulus (E3)	Lets you define the Young's modulus. This property can be a constant, an expression, or a temperature dependent field.In the Samcef .MAT command, this corresponds to the YT parameter.For more information, see the Samcef linear elastic material page.
Compression Young's Modulus (Yci)
Appears when you select Samcef Orthotropic Bilinear Structure from the Property View list.
Compression Young's Modulus (YC1), Compression Young's Modulus (YC2), and Compression Young's Modulus (YC3)	Lets you define the compressive Young's modulus.In the Samcef .MAT command, this corresponds to the YC parameter.For more information, see the Samcef bilinear elastic material page.
Poisson's Ratio (NUij)
Poisson's Ratio (NU12), Poisson's Ratio (NU23), and Poisson's Ratio (NU13)	Lets you define the Poisson's ratio. This property can be a constant, an expression, or a temperature dependent field.In the Samcef .MAT command, this corresponds to the NT parameter.For more information, see the Samcef linear elastic material page.
Shear Modulus (Gij)
Shear Modulus (G12), Shear Modulus (G13), and Shear Modulus (G23)	Lets you define the shear modulus. This property can be a constant, an expression, or a temperature dependent field.In the Samcef .MAT command, this corresponds to the G parameter.For more information, see the Samcef linear elastic material page.
Stress-Strain Related Properties
Appears when you select Samcef Orthotropic Structure from the Property View list.In the Stress-Strain Related Properties, you can define elastoplastic properties.For information about defining Yield criterion properties, see Yield criterion in the Elastoplastic Material dialog box (Simcenter Samcef).For information about defining hardening laws, see Hardening Properties in Elastoplastic Material dialog box (Simcenter Samcef).

Strength page

Appears when you select Samcef Orthotropic Structure from the Property View list.

For more information, see Material Failure Criteria Pages in the Orthotropic Material dialog box (Simcenter Samcef Structure).

Thermal/Electrical page

Appears when you select when you select Samcef Orthotropic Structure, Samcef Orthotropic Bilinear Structure, or Samcef Orthotropic Linear Damage Structure from the Property View list.

Thermal
Temperature (TREF)	Lets you define the material reference temperature. In the Samcef .MAT command, this corresponds to the TREF parameter.
Thermal Expansion
Thermal Expansion Coefficient (A), Thermal Expansion Coefficient (A2), Thermal Expansion Coefficient (A3)	Lets you define the thermal expansion coefficients. In the Samcef .MAT command, this corresponds to the A parameter.linear elastic material

For more information on the use of Temperature (TREF) and Thermal Expansion Coefficient (A) in Samcef, see Reference and Initial Temperatures in Samcef (Simcenter Samcef).

Creep page

Appears when you select Samcef Orthotropic Structure from the Property View list.

On the Creep page, you can define creep laws. For more information, see Creep Laws Definition dialog box (Simcenter Samcef Structure).

Viscoelasticity page

Appears when you select Samcef Orthotropic Structure from the Property View list.

On the Viscoelasticity page, you can define viscoelastic properties. For more information, see Viscoelastic properties in the Material dialog box (Simcenter Samcef).

Viscoplasticity page

Appears when you select Samcef Orthotropic Structure from the Property View list.

On the Viscoplasticity Properties page, you can define viscoplastic properties. For more information, see Viscoplastic properties in the Material dialog box (Simcenter Samcef).

Damage page

Appears when you select when you select Samcef Orthotropic Structure or Samcef Orthotropic Linear Damage Structure from the Property View list.

For the Samcef Orthotropic Structure, you can select UD Ply Damage, Enhanced UD Ply Damage, WF Ply Damage, Constant Damage, or a Rupture with Damage mode.

For the Samcef Orthotropic Linear Damage Structure, you can select a Constant Damage mode.

Damage page for UD Ply Damage, Enhanced UD Ply Damage, and WF Ply Damage modes

You can select UD Ply Damage, Enhanced UD Ply Damage, or WF Ply Damage from the list to define a UD Ply or Woven Fabrics composite material. For more information, see Damage models for Orthotropic materials (Simcenter Samcef).

Damage page for Constant Damage mode

You can choose between Relative Damaged Poisson's Ratio (mode 1) or Damaged Poisson's Ratio (mode 2).For more information, see the Samcef linear damage material page.

Damage page: Rupture with Damage mode

Parameter for Delay (ADEL), Time for Delay (TAU)	Lets you define the two parameters for the delay law.Note: The Time for Delay (TAU) value is required.For more information, see the ADEL and TAU parameters of the Samcef damage ply material page.
Maximum Damage Value (DDEN)	To avoid a singular stiffness matrix when all the material is damaged, you can specify the maximum damage value the material can undergo. Default value = 0.999For more information, see the DDEN parameter of the Samcef damage ply material page.
Equivalent Plastic Strain Limit	Lets you define the equivalent plastic strain limit.

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Orthotropic Material dialog box (Simcenter Samcef Structure), Simcenter 3D 2021.1 Series

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