Code_Aster
®
Version
7.4
Titrate:
Operator
DEPL_INTERN
Date:
03/02/05
Author (S):
J. PELLET
Key
:
U4.62.02-G
Page
:
1/4
Instruction manual
U4.6- booklet: Elementary matrices/Vectors and assembly
HT-66/05/004/A
Organization (S):
EDF-R & D/AMA
Instruction manual
U4.6- booklet: Elementary matrices/Vectors and assembly
Document: U4.62.02
Operator
DEPL_INTERN
1 Goal
To calculate the field of displacement inside a static substructure. The result of
control is then a field of displacement on the mesh associated with the macronutrient (i.e.
mesh of lower level). One can reiterate this operation until the mesh moreover low
level (those which contain the finite elements).
This stage can be regarded as a postprocessing on the macronutrient. It cannot be
carried out that after the total resolution. The field thus calculated can then be used by the operator
CALC_CHAM_ELEM
(or other operators) to calculate the stresses,….
When a macronutrient gave rise to several substructures, fields of
displacements in these substructures are restored on the mesh subjacent with the macronutrient. It
y thus has change of reference mark of the field of displacement if the substructure were turned.
If the substructure were turned of +
, the field of displacement is turned of .
This field of displacement is then coherent with the mesh and one can connect them
postprocessings: calculation of the stresses,…
Product a structure of data of the cham_no_DEPL_R. type.
Code_Aster
®
Version
7.4
Titrate:
Operator
DEPL_INTERN
Date:
03/02/05
Author (S):
J. PELLET
Key
:
U4.62.02-G
Page
:
2/4
Instruction manual
U4.6- booklet: Elementary matrices/Vectors and assembly
HT-66/05/004/A
2 Syntax
U (cham_no_DEPL_R) = DEPL_INTERN
(
DEPL_GLOBAL
=
ug
,
[cham_no_DEPL_R]
NET
=
mall,
[mesh]
NOM_CAS =
/
nocas
,
[K8]
/
'',
[DEFECT]
)
Code_Aster
®
Version
7.4
Titrate:
Operator
DEPL_INTERN
Date:
03/02/05
Author (S):
J. PELLET
Key
:
U4.62.02-G
Page
:
3/4
Instruction manual
U4.6- booklet: Elementary matrices/Vectors and assembly
HT-66/05/004/A
3 Operands
3.1 Operand
DEPL_GLOBAL
DEPL_GLOBAL = ug
ug
is the name of the field of displacement obtained at the time of the resolution at the total level.
3.2 Operand
NET
NET = mall
One gives here the name of the mesh which supports the substructure (cf operator
DEFI_MAILLAGE
[U4.23.01]).
3.3 Operand
NOM_CAS
NOM_CAS = nocas
nocas
is the name of the loading case corresponding to
ug
. This data is essential if it
exist a loading distributed on the substructure. It is with the user to make sure that the field
ug
corresponds well to the loading case
nocas
.
If
nocas
= '', the field of displacement was calculated without loading distributed on
substructure.
Code_Aster
®
Version
7.4
Titrate:
Operator
DEPL_INTERN
Date:
03/02/05
Author (S):
J. PELLET
Key
:
U4.62.02-G
Page
:
4/4
Instruction manual
U4.6- booklet: Elementary matrices/Vectors and assembly
HT-66/05/004/A
4 Example
·
Mesh of level 1:
my,
macronutrient:
S1
O
S1
·
Mesh of level 2: 2 substructures:
S1
and
S2
(obtained by rotation of
S1
).
S1
S2
O
Displacement
ug
:
·
known on the external nodes of the substructures,
·
it is supposed radial (compared to O).
·
u2 = DEPL_INTERN (DEPL_GLOBAL = ug, MESH = S2)
O
Displacement
u2
:
·
known on all the nodes of
my
,
·
there remains radial because the field was turned of - 45° to be coherent with the mesh.