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Code_Aster
®
Version
7.3
Titrate:
Modeling
ROAST
and
GRILL_MEMBRANE
Date:
14/09/04
Author (S):
P. BADEL, C. CHAVANT
Key
:
U3.12.04-B2
Page:
1/6
Instruction manual
U3.12 booklet: Mechanical elements of structure 2D
HT-66/04/004/A
Organization (S):
EDF-R & D/AMA















Instruction manual
U3.12 booklet: Mechanical elements of structure 2D
U3.12.04 document



Modeling
ROAST
and
GRILL_MEMBRANE



Summary:

This document describes for modelings
ROAST
and
GRILL_MEMBRANE
:
·
degrees of freedom carried by the finite elements which support modeling,
·
the related meshs supports,
·
supported materials and loadings,
·
options of calculations for the elementary matrices and the post processing,
·
nonlinear possibilities as well as the options of the breaking process if they exist.

Modeling
ROAST
(Phenomenon:
MECHANICS
) corresponds to finite elements of which the meshs supports
are triangles with three nodes and is used to represent the reinforcements for modelings concrete reinforced with type
hull. Indeed, it makes it possible to take into account the offsetting of the tablecloths of reinforcements compared to
average layer.
Modeling
GRILL_MEMBRANE
(phenomenon:
MECHANICS
) corresponds to finite elements of which them
meshs supports are triangles with three nodes and quadrangles with four nodes and is used to represent them
reinforcements for modelings concrete reinforced with massive type 3D. Indeed, it does not make it possible to take in
count offsetting and thus does not require a degree of freedom of rotation, useless in modeling 3D.

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Code_Aster
®
Version
7.3
Titrate:
Modeling
ROAST
and
GRILL_MEMBRANE
Date:
14/09/04
Author (S):
P. BADEL, C. CHAVANT
Key
:
U3.12.04-B2
Page:
2/6
Instruction manual
U3.12 booklet: Mechanical elements of structure 2D
HT-66/04/004/A
1 Discretization
1.1
Degrees of freedom
Modeling
Degrees of freedom
(with each node node)
ROAST
DX
: following displacement
X
DY
: following displacement
Y
DZ
: following displacement
Z
DRX
: rotation around
X
DRY
: rotation around
Y
DRZ
: rotation around
Z
GRILL_MEMBRANE
DX
: following displacement
X
DY
: following displacement
Y
DZ
: following displacement
Z
1.2
Net support of the matrices of rigidity
The meshs support of the finite elements, in displacement formulation, are triangles.
Modeling Nets Element
finished
Remarks
ROAST TRIA3 MEGRDKT
GRILL_MEMBRANE TRIA3
MEGMTR3
GRILL_MEMBRANE QUAD4
MEGMQU4
1.3
Net support of the loadings
All the loadings applicable to the breakages of the elements of grid are treated by discretization
direct on the mesh support of the element in displacement formulation.
No mesh support of loading is thus necessary for the faces of the elements of grids.


2
Significance of the symbols
·
corresponds to a functionality available
corresponds to a functionality which could exist but noncurrently available
Name of case
test
corresponds to a test implementing the functionality
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Code_Aster
®
Version
7.3
Titrate:
Modeling
ROAST
and
GRILL_MEMBRANE
Date:
14/09/04
Author (S):
P. BADEL, C. CHAVANT
Key
:
U3.12.04-B2
Page:
3/6
Instruction manual
U3.12 booklet: Mechanical elements of structure 2D
HT-66/04/004/A
3
Assignment of the characteristics
One must assign characteristics to the elements
ROAST
by using the key word
ROAST
order
AFFE_CARA_ELEM
.


4 Materials
supported
DEFI_MATERIAU ROASTS
GRILL_MEMBRANE
ELAS
SSNS100A
SSNS105A
PINTO_MENEGOTTO
SSNS100C
·
ECRO_LINE
SSNS100A
SSNS105A
ECRO_LINE_FO
·
·
CHABOCHE


5 Loadings
supported
5.1
AFFE_CHAR_MECA
AFFE_CHAR_MECA
Generals
ROAST GRILL_MEMBRANE
DDL_IMPO
SSLS109B
SSNS105A
LIAISON_DDL
·
·
LIAISON_OBLIQUE
·
·
FORCE_NODALE
SSLS109B
·
AFFE_CHAR_MECA
private individuals
ROAST GRILL_MEMBRANE
Remarks
FORCE_ELEC
IMPE_FACE
INTE_ELEC
GRAVITY
·
ROTATION
TEMP_CALCULEE
· ·
EPSI_INIT
·
VITE_FACE
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Code_Aster
®
Version
7.3
Titrate:
Modeling
ROAST
and
GRILL_MEMBRANE
Date:
14/09/04
Author (S):
P. BADEL, C. CHAVANT
Key
:
U3.12.04-B2
Page:
4/6
Instruction manual
U3.12 booklet: Mechanical elements of structure 2D
HT-66/04/004/A
5.2
AFFE_CHAR_MECA_F
AFFE_CHAR_MECA_F
Generals
ROAST GRILL_MEMBRANE
DDL_IMPO
·
·
LIAISON_DDL
·
·
LIAISON_OBLIQUE
·
·
FORCE_NODALE
·
·

AFFE_CHAR_MECA_F
private individuals
ROAST GRILL_MEMB
FORCE_ELEC
IMPE_FACE
INTE_ELEC
GRAVITY
ROTATION
TEMP_CALCULEE
EPSI_INIT
VITE_FACE


6 Possibilities
non-linear
Nonlinear behaviors for modelings
ROAST
correspond to behaviors
incrémentaux private individuals in
STAT_NON_LINE
:
·
GRILL_ISOT_LINE
for plasticity with isotropic work hardening,
·
GRILL_ISOT_CINE
for plasticity with kinematic work hardening linear Bi,
·
GRILL_PINTO_MEN
for the behavior of Pinto Menegotto.
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Code_Aster
®
Version
7.3
Titrate:
Modeling
ROAST
and
GRILL_MEMBRANE
Date:
14/09/04
Author (S):
P. BADEL, C. CHAVANT
Key
:
U3.12.04-B2
Page:
5/6
Instruction manual
U3.12 booklet: Mechanical elements of structure 2D
HT-66/04/004/A
7
Elementary calculations of matrices
OPTIONS
elementary
ROAST GRILL_MEMBRANE
“AMOR_MECA”
·
“FULL_MECA”
· ·
“IMPE_MECA”
“MASS_MECA”
·
“MASS_MECA_DIAG”
“RAPH_MECA”
· ·
“RIGI_GEOM”
“RIGI_MECA”
· ·
“RIGI_MECA_HYST”
·
“RIGI_MECA_TANG”
· ·
“RIGI_ROTA”


8
Postprocessing of calculation
8.1 Options
CALC_ELEM
ROAST GRILL_MEMBRANE
“SIEF_ELGA_DEPL”
SSLS109B
“SIGM_ELNO_DEPL”
SSLS109B
“SIGM_ELNO_CART”
“EFGE_ELNO_DEPL”
SSLS109B
“EPSI_ELNO_DEPL”
SSLS109B
“DEGE_ELNO_DEPL”
SSLS109B
“EPOT_ELEM_DEPL”
·
“ECIN_ELEM_DEPL”
·
“VNOR_ELEM_DEPL”
·
“EFGE_ELNO_CART”
“SIEF_ELNO_ELGA”
SSNS100A ·
“VARI_ELNO_ELGA”
· ·
“SIGM_ELNO_COQU”
SSNS100A
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Code_Aster
®
Version
7.3
Titrate:
Modeling
ROAST
and
GRILL_MEMBRANE
Date:
14/09/04
Author (S):
P. BADEL, C. CHAVANT
Key
:
U3.12.04-B2
Page:
6/6
Instruction manual
U3.12 booklet: Mechanical elements of structure 2D
HT-66/04/004/A
8.2 Options
CALC_CHAM_ELEM
ROAST GRILL_MEMBRANE
“SIEF_ELGA_DEPL”
·
“SIGM_ELNO_DEPL”
·
“SIGM_ELNO_CART”
“EFGE_ELNO_DEPL”
·
“EPSI_ELNO_DEPL”
·
“DEGE_ELNO_DEPL”
·
“EPOT_ELEM_DEPL”
·
“ECIN_ELEM_DEPL”
·
“EFGE_ELNO_CART”

8.3 Options
CALC_NO
ROAST GRILL_MEMBRANE
“FORC_NODA”
SSLS109B SSNS105A
“REAC_NODA”
“MASS_INER”
·