Code_Aster ®
Version
7.4
Titrate:
Operator DEPL_INTERN
Date:
03/02/05
Author (S):
J. Key PELLET
:
U4.62.02-G Page
: 1/4
Organization (S): EDF-R & D/AMA
Handbook of Utilization
U4.6- booklet: Elementary matrices/Vecteurs and assembly
Document: U4.62.02
Operator DEPL_INTERN
1 Goal
To calculate the field of displacement inside a static substructure. The result of
command is then a field of displacement on the grid associated with the macronutrient (i.e.
grid of lower level). One can reiterate this operation until the grids 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 constraints,….
When a macronutrient gave rise to several substructures, fields of
displacements in these substructures are restored on the grid 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 grid and one can connect them
postprocessings: calculation of the constraints,…
Product a structure of data of the cham_no_DEPL_R. type.
Handbook of Utilization
U4.6- booklet: Elementary matrices/Vecteurs and assembly
HT-66/05/004/A
Code_Aster ®
Version
7.4
Titrate:
Operator DEPL_INTERN
Date:
03/02/05
Author (S):
J. Key PELLET
:
U4.62.02-G Page
: 2/4
2 Syntax
U (cham_no_DEPL_R) = DEPL_INTERN
(
DEPL_GLOBAL
=
ug
,
[cham_no_DEPL_R]
MAILLE
=
mall,
[mesh]
NOM_CAS =/nocas
,
[K8]
/'',
[DEFAUT]
)
Handbook of Utilization
U4.6- booklet: Elementary matrices/Vecteurs and assembly
HT-66/05/004/A
Code_Aster ®
Version
7.4
Titrate:
Operator DEPL_INTERN
Date:
03/02/05
Author (S):
J. Key PELLET
:
U4.62.02-G Page
: 3/4
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
MAILLE
MAILLE = 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 were calculated without loading distributed on
substructure.
Handbook of Utilization
U4.6- booklet: Elementary matrices/Vecteurs and assembly
HT-66/05/004/A
Code_Aster ®
Version
7.4
Titrate:
Operator DEPL_INTERN
Date:
03/02/05
Author (S):
J. Key PELLET
:
U4.62.02-G Page
: 4/4
4 Example
·
Grid of level 1: my, macronutrient: S1
S1
O
·
Grid of level 2: 2 substructures: S1 and S2 (obtained by rotation of S1).
S2
S1
O
Ug displacement:
·
known on the external nodes of the substructures,
·
it is supposed radial (compared to O).
·
u2 = DEPL_INTERN (DEPL_GLOBAL = ug, MAILLE = S2)
O
U2 displacement:
·
known on all the nodes of my,
·
there remains radial because the field was turned of - 45° to be coherent with the grid.
Handbook of Utilization
U4.6- booklet: Elementary matrices/Vecteurs and assembly
HT-66/05/004/A
Outline document