/MAT/LAW64 (UGINE

Block Format Keyword

/MAT/LAW64 - Ugine & Alz Trip Steel Material

Description

This law describes the Ugine & Alz trip steel material. This material law can be used only with shell elements.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/MAT/LAW64/mat_ID/unit_ID or /MAT/UGINE_ALZ/mat_ID/unit_ID
mat_title

E				Cp
D		n		Md		V0		Vm
fct_ID0	fct_ID1	Fscale0		Fscale1		T0

Field	Contents	SI Unit Example
mat_ID	Material identifier (Integer, maximum 10 digits)
unit_ID	Optional unit identifier (Integer, maximum 10 digits)
mat_title	Material title (Character, maximum 100 characters)
	Initial density (Real)
E	Initial Young’s modulus (Real)
	Poisson’s ratio (Real)
Cp	Specific heat capacity Default = 1030 (Real)
D	Material parameter 1 (Real)
n	Material parameter 2 (Real)
Md	Limit martensite transformation temperature (Real)
V0	Material parameter (Real)
Vm	Constant martensite fraction for second yield stress function 0 < Vm < 1 (Real)
fct_ID0	Yield stress function identifier for 0 martensite fraction (Integer)
fct_ID1	Yield stress function identifier for Vm martensite fraction (Integer)
Fscale0	Scale factor for yield function for fct_ID0 (Real)
Fscale1	Scale factor for yield function for fct_ID1 (Real)
T0	Initial temperature (Real)

#RADIOSS STARTER

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

/UNIT/1

unit for mat

Mg mm s

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

#- 2. MATERIALS:

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

/MAT/LAW64/1/1

Steel

# RHO_I

7.8E-9

# E NU Cp

210000 .3 460000000

# D n Md V0 Vm

4 3.5 356 .2 .6

# fct_ID0 fct_ID1 Fscale0 Fscale1 T0

1 2 1 1 323

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

#- 3. FUNCTIONS:

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

/FUNCT/1

function_1

# X Y

0 250

.001 350

.5 1100

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

/FUNCT/2

function_2

# X Y

0 930

.001 1000

.5 1500

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

#ENDDATA

/END

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

1.	Martensite fraction:

2.	Mechanical behavior:

The yield plastic stress is computed by linear interpolation between two curves fct_ID1 and fct_ID0.

3.	The temperature is computed assuming the adiabatic condition (by default the condition is isothermal with Cp = 1030):

where, Eint is the internal energy of the element.

/MAT/LAW64 (UGINE_ALZ)

/MAT/LAW64 (UGINE_ALZ)

/MAT/LAW64 (UGINE_ALZ)