/MAT/LAW53 (TSAI

Block Format Keyword

/MAT/LAW53 - Material

Description

Describes the law that is a uni-directional orthotropic elasto-plastic law and is only used with solid elements.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/MAT/LAW53/mat_ID/unit_ID or /MAT/TSAI_TAB/mat_ID/unit_ID
mat_title

E11		E22
G12		G23
fct_ID11	fct_ID22	fct_ID12	fct_ID23	fct_ID45
Fscale11		Fscale22		Fscale12		Fscale23		Fscale45

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)
E11	Young’s modulus (Real)
E22	Young’s modulus (Real)
G12	Shear modulus (Real)
G23	Shear modulus (Real)
fct_ID11	Yield stress function identifier in direction 11 (Integer)
fct_ID22	Yield stress function identifier in direction 22 (Integer)
fct_ID12	Yield stress function identifier in direction 12 (Integer)
fct_ID23	Yield stress function identifier in direction 23 (Integer)
fct_ID45	Yield stress function identifier in direction 45 (Integer)
Fscale11	Scale factor for yield function 11 Default = 1.0 (Real)
Fscale22	Scale factor for yield function 22 Default = 1.0 (Real)
Fscale12	Scale factor for yield function 12 Default = 1.0 (Real)
Fscale23	Scale factor for yield function 23 Default = 1.0 (Real)
Fscale45	Scale factor for yield function 45 Default = 1.0 (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/LAW53/1/1

plastic

# RHO_I

2E-10

# E11 E22

200 200

# G12 G23

100 100

# fct_ID11 fct_ID22 fct_ID12 fct_ID23 fct_ID45

1 1 3 4 5

# Fscale11 Fscale22 Fscale12 Fscale23 Fscale45

0 0 0 0 0

#---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

0 200

.1 200

.11 100

.5 100

1.5 20000

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

/FUNCT/2

function_2

# X Y

0 1

10000 1

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

/FUNCT/3

function_3

# X Y

0 200

.1 200

.11 100

.5 100

1.5 20000

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

/FUNCT/4

function_4

# X Y

0 200

.5 200

1.5 20000

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

/FUNCT/5

function_5

# X Y

0 100

.5 100

1.5 20000

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

#ENDDATA

/END

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

1.	Orthotropic reference frame (1, 2, and 3) is defined in the appropriate property set of each finite element.

For SOLID property set (/PROP/TYPE14), the global frame is used if Isolid = 1, 2 or 12.

clip0072

2.	The global frame is (X, Y, and Z).

3.	The local frame is (t, r, and s).

4.	The law is othotropic, E33 = E22 and G13 = G12.

5.	The yield surface is Tsai-Wu yield criteria:

with

The parameters: are variable and introduced by yield function.

6.	If fct_ID45 ≠ 0,

/MAT/LAW53 (TSAI_TAB)

/MAT/LAW53 (TSAI_TAB)

/MAT/LAW53 (TSAI_TAB)

Format