/MAT/LAW200 (MDS)

This material is not compatible with failure models, viscous model or thermal options. All damage and failure are defined inside of the material directly. This material is compatible with shell and any solid elements.

Format

(1)	(2)	(4)	(6)	(7)	(9)
/MAT/LAW200/`mat_ID`/`unit_ID` or /MAT/MDS/`mat_ID`/`unit_ID`
`mat_title`
`mds_material_file`
`FLAG`
`fiber_orientation_file`
`Fail_1`	`Fail_1_l`	`Fail_1_u`	`Fail_2`	`Fail_2_l`	`Fail_2_u`
`Ifail`

Definition

Field	Contents	SI Unit Example
`mat_ID`	Material identifier. (Integer, maximum 10 digits)
`unit_ID`	Unit Identifier. (Integer, maximum 10 digits)
`mat_title`	Material title. (Character, maximum 100 characters)
`mds_material_file`	mdsMAT material file name. (Character, maximum 100 characters)
`FLAG`	Material option. Blank No option FIBER Optional for the fiber orientation input (Character, maximum 100 characters)
`fiber_orientation_file`	The _mdsFiberOri.dat filename. Used only if `FLAG`=FIBER. (Character, maximum 100 characters)
`Fail_1`	1^st MDS Failure model identifier. (Integer)
`Fail_1_l`	Lower limit for the 1^st Failure criteria. (Real)
`Fail_1_u`	Upper limit for the 1^st Failure criteria. (Real)
`Fail_2`	2^nd MDS Failure model identifier. (Integer)
`Fail_2_l`	Lower limit for the 2^nd Failure criteria. (Real)
`Fail_2_u`	Upper limit for the 2^nd Failure criteria. (Real)
`Ifail`	Failure flag =0 (Default) Element deletion occurs when failure criteria 1 or 2 are reached. =1 Element deletion occurs when one of the failure criteria 1 and 2 is reached. (Integer)

Example (MDS)

#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/MDS/1
# title
material MDS
# Material File name
material1_mdsMAT.dat
# Material Option
FIBER
# Fiber orientation file name
mdsFiberOri.dat
#   Fail_1            Fail_1_l            Fail_1_u    Fail_2            Fail_2_l            Fail_2_u
         0                 0.0                 0.0         0                 0.0                 0.0
#    Ifail
         0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/MDS/2
# title
material MDS
# Material File name
material1_mdsMAT.dat
# Material Option

# Fiber orientation file name

#   Fail_1            Fail_1_l            Fail_1_u    Fail_2            Fail_2_l            Fail_2_u
         0                 0.0                 0.0         0                 0.0                 0.0
#    Ifail
         0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#ENDDATA
/END
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Comments

This material law is a direct input to Radioss for the Multiscale Designer material law. Information about the contents of the different files is available in Multiscale Designer Reference Guide.
/MAT/LAW200 (MDS) is available to connect Radioss 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 allowances, fatigue, fracture, impact, crash, environmental degradation, and multiphysics simulations.
- Developed 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 allowances supported by test and perform fatigue analysis.
- Efficient plug-ins to commercial FEA codes OptiStruct and Radioss.
If the /MAT/LAW200 (MDS) entry is specified, Radioss will search for the Multiscale Designer installation within the same Mechanical Solvers installation from which the Radioss run is initiated. The MDSDIR I/O Options Entry can also be used to specify the Multiscale Designer installation location, if it was installed in a different location.