/INIBRI/ORTHO
Block Format Keyword Describes the initialization of orthotropy direction for a brick or for a thick shell.
Format
(1)  (2)  (3)  (4)  (5)  (6)  (7)  (8)  (9)  (10) 

/INIBRI/ORTHO/unit_ID 
(1)  (2)  (3)  (4)  (5)  (6)  (7)  (8)  (9)  (10) 

brick_ID  Nb_layer  Isolnod  Prop_type  Isolid 
(1)  (2)  (3)  (4)  (5)  (6)  (7)  (8)  (9)  (10) 

X_{1}  Y_{1}  Z_{1}  X_{2}  Y_{2}  
Z_{3} 
(1)  (2)  (3)  (4)  (5)  (6)  (7)  (8)  (9)  (10) 

brick_ID  Nb_layer  Isolnod  Prop_type  Isolid 
For each integration point (Nb_layer > 0)
(1)  (2)  (3)  (4)  (5)  (6)  (7)  (8)  (9)  (10) 

$\mathrm{cos}\alpha $  $\mathrm{sin}\alpha $ 
Definition
Field  Contents  SI Unit Example 

unit_ID  Unit Identifier (Integer, maximum 10 digits) 

brick_ID  Element
identifier (Integer) 

Nb_layer  Number of layers (≥ 1 for
elements with Prop_type = 21 or 22). It corresponds to the property definition of this element. (Integer) 

Prop_type  Property element
type. (Integer) 

Isolnod  Number of nodes of solid
element. (Integer) 

Isolid  Solid elements
formulation. It corresponds to the solid elements formulation of in property definition of this element. (Integer) 

X_{1}  X component of first axis
of orthotropy reference system (expressed in the global reference
system). (Real) 

Y_{1}  Y component of first axis
of orthotropy reference system (expressed in the global reference
system). (Real) 

Z_{1}  Z component of first axis
of orthotropy reference system (expressed in the global reference
system). (Real) 

X_{2}  X component of second axis
of orthotropy reference system (expressed in the global reference
system). (Real) 

Y_{2}  Y component of second axis
of orthotropy reference system (expressed in the global reference
system). (Real) 

Z_{2}  Z component of second axis
of orthotropy reference system (expressed in the global reference
system). (Real) 

$\mathrm{cos}\alpha $  Cosine of the angle of
first direction of orthotropy relatively of first direction of the
local reference frame. (Real) 

$\mathrm{sin}\alpha $  Sine of the angle of first
direction of orthotropy relatively of first direction of the local
reference frame. (Real) 
Comments
 The third axis of orthotropy reference system is the cross product of the first and the second one.
 If Nb_layers
(If Prop_type = 22) > 1, the optional
continuation lines have to be repeated for each layer.
Format Line 3; Format Line 4