MATMDS
Bulk Data Entry Defines material properties and parameters through an interface to Altair Multiscale Designer® allowing you to include a much wider range of different material models.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATMDS | MID | AMAT | OPTION | AOPT |
Example
ASSIGN,MATMDS,USRMAT,D:/mymaterial.dat
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATMDS | 32 | USRMAT | FIBER | FIBMAT |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| MID | Each
MATMDS Bulk Data Entry should have a
unique ID. No default (Integer > 0) |
|
| AMAT | Identifies the name of
the ASSIGN entry which identifies the
Multiscale Designer material file. No default (<Character String>) |
|
| OPTION | Identifies the entity
to which the subsequent material is applied.
|
|
| AOPT | Identifies the name of
the ASSIGN entry which identifies the
Multiscale Designer material file for the
specified entity in the OPTION
field. Default = blank (<Character String> or blank) |
Comments
- MATMDS is
available to interface OptiStruct with Multiscale Designer to include a much wider range of different
material models.
Multiscale Designer is an efficient tool for development and simulation of multiscale material models of continuous, woven, and/or chopped fiber composites, honeycomb cores, reinforced concrete, soil, bones, and various other heterogeneous materials.
Applications include multiscale material modeling for design, ultimate failure, statistical- based material allowables, fatigue, fracture, impact, crash, environmental degradation, and multiphysics simulations and provides plugins to commercial FEA solvers OptiStruct and Radioss.- Develop multiscale material models using forward homogenization and inverse optimization technologies
- Built-in parametric unit cells for unidirectional, woven, chopped, and particulate fiber composites
- Simulate nonlinear material behavior including ultimate failure at the micro-scale
- Obtain virtual material allowables supported by test and perform fatigue analysis
- Efficient plug-ins to commercial FEA codes OptiStruct and Radioss
- Material model data files from Multiscale Designer can be located anywhere on the machine and can be identified using the ASSIGN,MATMDS command.
- If the MATMDS entry is specified, then OptiStruct looks for the Multiscale Designer installation within the same Mechanical Solvers installation from which the OptiStruct run is initiated. The MDSDIR I/O Options Entry can also be used to specify the Multiscale Designer installation location, if it has been installed in a different location.
- MATMDS is supported for both Shell and Solid elements.