Export of MAT8 materials in Simcenter Samcef

Simcenter Nastran MAT8/MATT8/MATS1 material is exported to the Simcenter Samcef input file as a standard Orthotropic material (.MAT BEHAV "ELASTIC" command). The software exports the MAT8 properties as well as some additional orthotropic properties that can be set in the Orthotropic Material dialog box.

MAT8 properties

Mechanical data	Output in the Simcenter Samcef input file (.MAT BEHAV "ELASTIC")
**Young's Modulus (E1)**and Young's Modulus (E2)	YT E1 E2 E2
Poisson's Ratio (NU12)	NT NU12 0. 0.Note: If Shear Modulus (G12), Shear Modulus (G13), and Shear Modulus (G23) have the same value, Poisson's ratios are output as NT NU12 NU12 NU12
Shear Modulus (G12), Shear Modulus (G13), and Shear Modulus (G23)	G G12 G23 G13Note: If Shear Modulus (G13) is not defined, its value is defined as Shear Modulus (G12) * 1000.If Shear Modulus (G23) is not defined, its value is defined as Shear Modulus (G12) * 1000.

Strength data (Tsai-Wu failure criteria)	Output in the Simcenter Samcef input file (.MAT BEHAV "ELASTIC")
Tension (ST1) and Tension (ST2)	XT ST1 ST2 ST2
**Compression (SC1)**and Compression (SC2)	XC SC1 SC2 SC2
Shear (SS12)	RST SS12 SS12 SS12
Tsai-Wu Coefficient
F12	FIJ F12 F12 F12

Thermal/Electrical data	Output in the Simcenter Samcef input file (.MAT BEHAV "ELASTIC")
Temperature (TREF)	TREF
Thermal Expansion Coefficient (A), Thermal Expansion Coefficient (A2)****	A A1 A2 A2

Additional orthotropic properties

The Simcenter Nastran MAT8/MATT8/MATS1 property view shows you the properties that you can define for that type of material. However, some other orthotropic properties may be defined when you import an orthotropic material from another model (or an external source), or if you explicitly define them using the All Properties view.

In this case, the Simcenter Samcef input file may include some of these properties, even if you do not see them in the Simcenter Nastran MAT8/MATT8/MATS1 view.

Property set in the All Properties view	Output in the Simcenter Samcef input file
Young's Modulus (E3)	If you define the Young's Modulus (E3), the software exports the material as a classical Orthotropic material.For more information, see Orthotropic Material dialog box (Simcenter Samcef Structure).

Strain Limits settings are exported if Young's Modulus (E3) is undefined or set to zero.

Property set in the All Properties view	Output in the Simcenter Samcef input file
Tension (XT1), Tension (XT2), and Tension (XT3)	DT XT1 XT2 XT2Note: The Tension (XT3) is ignored.
Compression (XC1), Compression (XC2), and Compression (XC3)	DC XC1 XC2 XC2Note: The Compression (XC3) is ignored.
Shear (XS12), Shear (XS13), and Shear (XS23)	DST XS12 XS12 XS12Note: The Shear (XS13) and Shear (XS23) properties are ignored.

Poisson’s Ratio settings are exported if Young's Modulus (E3) is undefined or set to zero.

Property set in the All Properties view	Output in the Simcenter Samcef input file
Poisson's Ratio (NU12), Poisson's Ratio (NU23), and Poisson's Ratio (NU13)	NT NU12 NU13 NU13Note: The Poisson's Ratio (NU23) property is ignored.

How do I

Assign a material using a mesh collector

Assign a material to a body

Find bodies with no material assignment

Filter the list of materials using a standard filter

Filter the list of materials using a custom filter

Configure columns in the material list

Use an inherited material in a physical property table

Override a material assignment in a Simulation file

Create a material

Create a new material by copying another material

Revert material properties to their inherited values

Lock an inherited material property

Specify a preferred material for a part or FEM

Learn more

Materials

Filtering specific material properties by solver and analysis type

Defining materials for Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Defining materials for Simcenter Samcef analyses (Simcenter Samcef Structure and Thermal)

Reference and Initial Temperatures in Samcef (Simcenter Samcef)

Understanding stress-strain yield stress input for Samcef

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Export of MAT8 materials in Simcenter Samcef, Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });