Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
1/16

Organization (S): EDF-R & D/AMA, (*) CS IF

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
Document: V2.02.131

SDLL131 - Seismic Calcul of a piping VVP.
Comparison Aster-SYSPIPE

Summary:

This test contributes to the validation of the operator of spectral analysis COMB_SISM_MODAL of Code_Aster.
The studied structure is a line of piping VVP subjected to an excitation multi supports. It is with a grid in
elements of right beam POU_D_T and curve POU_C_T.

The numerical reference solution is given by code SYSPIPE of FRAMATOME.
Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
2/16

1
Problem of reference

1.1 Geometry

· Isometry:

C1
N10 N12
N4
SP14
N3
C2
N13
N49
DAB
N1
M55
DAB
N17
PRICKING STEAM GENERATOR
M61
N48
SP13
N19
M60
N47
M54
N17
N46
SP13
N50
M56
M57
N19
N51
Z
SP12
N52
M58
M59
SP12
Y
N39
N39
X
N53
N43
C3
N44
N45
CROSSING BR


Studied line VVP presents a developed length of 28,4m.
The supports weight (SP12, SP13 and SP14) and the blocking device car (DAB) are not taken in
count in the seismic analysis.

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
3/16

Co-ordinates of the points (m):


NOEUDS
COOR X (m)
COOR Y (m)
COOR Z (m)
N3
- 0,91514 10,46 30,861
bend C1
N4
- 1,7194 11,368
32,081
center curvature
- 1,7194
11,368
30,861
N12
- 4,5175 14,526
32,069
bend C2
N13
- 5,3224 15,435
30,849
center curvature
- 4,5175
14,526
30,849
N43
- 5,3224 15,435
15,409
bend C3
N44
- 5,7184 16,583
14,189
center curvature
- 5,7184
16,583
15,409
pricking Steam Generator
N1
- 0,91514 10,46 29,944
crossing Br
N45
- 5,8819 17,058
14,187
support SP14
N10
- 3,6221 13,515
32,076
N17
- 5,3224 15,435
29
N46
- 4,7079 15,646
29
DAB+attache
N47
- 4,6449 15,569
29
N48
- 5,9369 15,223
29
N49
- 5,9386 15,123
29
N19
- 5,3224 15,435
28
support SP13
N50
- 5,4169 15,402
28
N51
- 5,2278 15,467
28
N39
- 5,3224 15,435
17,4
support SP12
N52
- 5,4169 15,402
17,4
N53
- 5,2278 15,467
17,4


· Characteristics of the sections:


Rext (m)
ep (m)
GROUP_MA
ring Steam Generator
0,408 0,038 GMAT04
current right portion
0,406 0,03 GMAT02
attach DAB
0,406 0,03 GMAT06
anchoring support
0,406 0,4 GMAT05
elbows C1, C2 and C3
0,406 0,032 GMAT03

Coefficient of flexibility RCC-M of the elbows: k=6,43.
Radius of curvature: Rc=1,22m.

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
4/16

1.2
Material properties

materials E
(Pa)
(Kg/m3)

(°C-1)
GROUP_MA
MAT02
2,04E+11 8100,2 0,3
1,092E-05 GMAT02
MAT03
2,04E+11 8098 0,3
1,092E-05
GMAT03
MAT04
2,04E+11 8053,6 0,3
1,092E-05 GMAT04
MAT05
2,04E+11 0 0,3
1,092E-05
GMAT05
MAT06
2,04E+11 1774,4 0,3
1,092E-05 GMAT06

1.3
Boundary conditions and loadings

·
Boundary conditions

Embedding pricking Steam Generator and crossed Br: DX=DY=DZ=DRX=DRY=DRZ=0 with the nodes N1 and N45

·
Seismic loading ­ Séisme Normalement Admissible (1/2 seism of
dimensioning)

- Multiple Excitation (several spectra by direction):

node N1 (pricking Steam Generator) in directions X and Y

frequency (Hz)
0,2.0,5.1,7 2,3 3.3,3.4,5 6 9 10 20 100
acceleration (G) 0,031 0,1 0,53
0,65
0,73
0,69
0,52
0,39
0,29 0,284 0,23 0,23

node N45 (crossed Br) in directions X and Y

frequency (Hz)
1.1,4 2,65
4,8 10 20 25 100
acceleration (G) 0,13 0,43 1,48
0,86
0,38
0,29
0,22
0,22

nodes N1 and N45 (pricking Steam Generator and crossed Br) in direction Z

frequency (Hz)
0,2.0,3.0,5
1
2 3 4 5 7 10 20
25
100
acceleration (G) 0,0155 0,025 0,044 0,1.0,2 0,25 0,28 0,28 0,22 0,15 0,12 0,1 0,1

- Seismic Differentials Displacement

u=0,004m with the node N45 (crossed Br) according to the local direction U.
U results from axis X by a rotation of angle =109,02° around axis Z.
This loading amounts applying ucos displacements and usin along axes X and Y.

Several cases of displacements are mentioned in the note of calculation FRAMATOME [bib1]
but only one is retained in this test.
Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
5/16

2
Reference solution

2.1
Method of calculation used for the reference solution

The reference solution is obtained by:

· software SYSPIPE of FRAMATOME,
· Code_Aster: test of nonregression based on an equivalent command set.

2.2
Results of reference

The line of piping was the subject of a complete lawful study. Results of the analysis
seismic are mentioned in the note of the manufacturer [bib1].

2.3
Uncertainty on the solution

Numerical solution, obtained with identical data and comparable elements.

2.4 References
bibliographical

[1]
Note calculation FRAMATOME ITMC/cd./414: Lines interior vapor Br of the sections
Fessenheim.
Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
6/16

3 Modeling
With

3.1
Characteristics of modeling

The model comprises 12 elements POU_C_T (4 by elbow) and 49 elements POU_D_T.

3.2
Characteristics of the grid

A number of nodes: 62
A number of meshs and type: 61 SEG2

· Connectivity:

net
node 1
node 2
net
node 1
node 2
M1 N4 N5 M32
N36
N37
M2 N5 N6 M33
N37
N38
M3 N6 N7 M34
N38
N39
M4 N7 N8 M35
N39
N40
M5 N8 N9 M36
N40
N41
M6 N9
N10
M37
N41
N42
M7 N10 N11 M38 N42
N43
M8 N11 N12 M39 N44
N45
M9 N13
N14 M40 N3
N55
M10 N14 N15 M41 N55
N56
M11 N15 N16 M42 N56
N57
M12 N16 N17 M43 N57
N4
M13 N17 N18 M44 N12
N59
M14 N18 N19 M45 N59
N60
M15 N19 N20 M46 N60
N61
M16 N20 N21 M47 N61
N13
M17 N21 N22 M48 N43
N63
M18 N22 N23 M49 N63
N64
M19 N23 N24 M50 N64
N65
M20 N24 N25 M51 N65
N44
M21 N25 N26 M52 N1
N2
M22 N26 N27 M53 N2
N3
M23 N27 N28 M54 N46
N47
M24 N28 N29 M55 N48
N49
M25 N29 N30 M56 N19
N50
M26 N30 N31 M57 N19
N51
M27 N31 N32 M58 N39
N52
M28 N32 N33 M59 N39
N53
M29 N33 N34 M60 N17
N46
M30 N34 N35 M61 N17
N48
M31 N35 N36

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
7/16

· Group of mesh:

GROUP_MA Nb nets
list meshs contained in the group
M1 m2 m3 M4 M5
M6 M7 M8 M9 M10
M11 M12 M13 M14 M15
M16 M17 M18 M19 M20
GMAT02
39
M21 M22 M23 M24 M25
M26 M27 M28 M29 M30
M31 M32 M33 M34 M35
M36 M37 M38 M39
M40 M41 M42 M43 M44
GMAT03
12
M45 M46 M47 M48 M49
M50 M51


GMAT04
2
M52 M53


M54 M55 M56 M57 M58
GMAT05
6
M59

GMAT06
2
M60 M61



3.3 Functionalities
tested

Commands




“MECHANICAL” AFFE_MODELE
“POU_D_T'


“MECHANICAL” AFFE_MODELE
“POU_C_T'


AFFE_CARA_ELEM BEAM
GROUP_MA RINGS
DEFI_ARC
GROUP_MA
CENTER


GROUP_MA
COEF_FLEX

AFFE_CHAR_MECA DDL_IMPO
GROUP_NO

DEFI_MATERIAU ELAS



AFFE_MATERIAU



MACRO_MATR_ASSE



POST_ELEM MASS_INER


MACRO_MODE_MECA CALC_FREQ



NORM_MODE
“MASS_GENE”


CALC_ELEM


CALC_NO

DEFI_FONCTION



DEFI_NAPPE



MODE_SATIQUE MODE_STAT



PSEUDO_MODE



COMB_SISM_MODAL MODE_CORR



AMOR_REDUIT



EXCIT
GROUP_NO


COMB_MODE



COMB_MULT_APPUI



COMB_DIRECTION



DEPL_MULT_APPUI



COMB_DEPL_APPUI



IMPR_RESU



Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
8/16

4
Results of modeling A

4.1 Frequencies
clean

mode
Code_Aster
Reference %
variation
1 5,0791
5,0793
- 0,004
2 8,7391
8,7402
- 0,012
3 11,642
11,633
0,075
4 23,104
23,111
- 0,029

4.2
Spectral analysis multi supports

4.2.1 Primary component (inertial effect)

· Method of calculation
- Modal Base comprising the 4 preceding modes,
- Reduced Damping of 5% for all the modes,
- Taking into account of the static contribution of the neglected clean modes (>25 Hz),
- Combination of the modal answers according to method CQC:
COMB_MODE=_F (TYPE=' CQC'),
- Quadratic Office plurality of the answers by supports:
COMB_MULT_APPUI=_F (TYPE=' QUAD'),
- Quadratic Office plurality of the directional answers:
COMB_DIRECTION=_F (TYPE=' QUAD'),

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
9/16


· Reference SYSPIPE
Generalized efforts: EFGE_ELNO_DEPL (N.m)

NET NODE CMP
Code_Aster
Reference %
variation
M52 N1 MT 132314,352 131471 0,641

MFY
34671,9174 34622 0,144

MFZ
34062,3639 33951 0,328
M40 N3 MT 132347,543 131466 0,671

MFY
13271,7861 13716 - 3,239

MFZ
12698,7018 12679 0,155
M43 N4 MT 25427,8116 25624 - 0,766

MFY
96610,7623 95915 0,725

MFZ
8474,33445 8335 1,672
M5 N8 MT 24995,7612 24868 0,514

MFY
12762,0643 12564 1,576

MFZ
42196,6397 42006 0,454
M44 N12 MT 25027,5711 24931 0,387

MFY
15984,253 15811 1,096

MFZ
17688,0827 17390 1,714
M47 N13 MT 40765,3048 40491 0,677

MFY
3066,98979 3201,1
- 4,190

MFZ
6599,21353 6521 1,199
M24 N28 MT 41227,5405 40943 0,695

MFY
37631,0924 37086 1,470

MFZ
45605,1023 44926 1,512
M48 N43 MT 41265,0496 41104 0,392

MFY
51189,9272 50726 0,915

MFZ
13728,1788 13628 0,735
M51 N44 MT 67834,6989 67395 0,652

MFY
27343,0908 27167 0,648

MFZ
33365,2076 32890 1,445
M39 N45 MT 67893,3287 67396 0,738

MFY
38018,4979 37285 1,967

MFZ
23350,1075 23551 - 0,853

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
10/16

[Figure 4.2.1-a] the evolution of a total size of equivalent moment gives
2
2
2
MT + Mr. FY + Mr. FZ according to the curvilinear X-coordinate of the analyzed section. A variation is noted
maximum of 1,2% between SYSPIPE and Code_Aster with the N29 node of the M25 mesh.

160000

140000

)
SYSPIPE

.m 120000
NR

Code_Aster
T
(

100000
in

I
valley
80000

U

T
éq
60000

E
N
m
40000

O

m
20000

0

0
5
10
15
20
25
30

ABSC_CURV (m)

Appear primary education 4.2.1-a: Composante - Champ of equivalent moment

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
11/16


· Code_Aster reference

The reference is obtained by calculating the total response with differential displacements
null.

Generalized efforts: EFGE_ELNO_DEPL (N.m)

NET NODE CMP Code_Aster
Reference %
variation
M52 N1 MT
132314,352 132314,352 0,000

MFY
34671,9174 34671,9174 0,000

MFZ
34062,3639 34062,3639 0,000
M40 N3 MT
132347,543 132347,543 0,000

MFY
13271,7861 13271,7861 0,000

MFZ
12698,7018 12698,7018 0,000
M43 N4 MT 25427,8116 25427,8116 0,000

MFY
96610,7623 96610,7623 0,000

MFZ
8474,33445 8474,33445
0,000
M5 N8 MT 24995,7612 24995,7612 0,000

MFY
12762,0643 12762,0643 0,000

MFZ
42196,6397 42196,6397 0,000
M44 N12 MT 25027,5711 25027,5711 0,000

MFY
15984,253 15984,253 0,000

MFZ
17688,0827 17688,0827 0,000
M47 N13 MT 40765,3048 40765,3048 0,000

MFY
3066,98979 3066,98979
0,000

MFZ
6599,21353 6599,21353
0,000
M24 N28 MT 41227,5405 41227,5405 0,000

MFY
37631,0924 37631,0924 0,000

MFZ
45605,1023 45605,1023 0,000
M48 N43 MT 41265,0496 41265,0496 0,000

MFY
51189,9272 51189,9272 0,000

MFZ
13728,1788 13728,1788 0,000
M51 N44 MT 67834,6989 67834,6989 0,000

MFY
27343,0908 27343,0908 0,000

MFZ
33365,2076 33365,2076 0,000
M39 N45 MT 67893,3287 67893,3287 0,000

MFY
38018,4979 38018,4979 0,000

MFZ
23350,1075 23350,1075 0,000

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
12/16

4.2.2 Secondary component (static effect of differential displacements)

· Method of calculation

- Linear Office plurality of the loadings in displacement imposed of crossing Br (node
N45) according to DX and DY:

DEPL_MULT_APPUI= (
_F (NOM_CAS=' DDS Br U local following DX',
NUME_CAS=1,
MODE_STAT=MSTAT,
NOEUD=N45,
DX=ucos,),
_F (NOM_CAS=' DDS Br U local following DY',
NUME_CAS=2,
MODE_STAT=MSTAT,
NOEUD=N45,
DY=usin,),),

COMB_DEPL_APPUI=_F (
TOUT=' OUI',
TYPE=' LINE',),

with u=0,004mm and =109,02°

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
13/16

· Reference SYSPIPE

Generalized efforts: EFGE_ELNO_DEPL (N.m)

NET NODE CMP Code_Aster
Reference %
variation
M52 N1 MT
- 3514,643 - 3519 - 0,124

MFY
- 8718,626 - 8731 - 0,142

MFZ
3839,959 3847 - 0,183
M40 N3 MT
- 3498,378 - 3519 - 0,586

MFY *
4627,678 4620 0,166

MFZ *
- 6559,864 - 6572 - 0,185
M43 N4 MT *
- 5466,298 - 5482 - 0,286

MFY
- 2661,552 - 2645
0,626

MFZ
707,119 704 0,443
M5 N8 MT
- 5451,862 - 5458 - 0,112

MFY
- 7813,834 - 7819 - 0,066

MFZ
- 1373,902 - 1376 - 0,153
M44 N12 MT - 5452,502 - 5459 - 0,119

MFY *
232,577 221 5,239

MFZ *
16264,520 16280 - 0,095
M47 N13 MT *
- 1080,825 - 1091 - 0,933

MFY
- 4608,238 - 4612 - 0,082

MFZ
17959,849 17978 - 0,101
M24 N28 MT - 1090,004 - 1091 - 0,091

MFY
616,317 617 - 0,111

MFZ
- 581,559 - 581 0,096
M48 N43 MT - 1087,843 - 1091 - 0,289

MFY *
1008,866 1008 0,086

MFZ *
18334,269 18351 - 0,091
M51 N44 MT *
- 1295,762 - 1299 - 0,249

MFY
- 803,728 - 799 0,592

MFZ
16745,356 16759 - 0,081
M39 N45 MT *
- 1298,075 - 1299 - 0,071

MFY *
14896,226 14908 - 0,079

MFZ *
680,911 681 - 0,013

(*): The signs of the moments of reference are reversed. Conventions of sign of
Code_Aster and SISPIPE are different.

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
14/16

[Figure 4.2.2-a] the evolution of a total size of equivalent moment gives
2
2
2
MT + Mr. FY + Mr. FZ according to the curvilinear X-coordinate of the analyzed section. A variation is noted
maximum of 0,93% between SYSPIPE and Code_Aster with the N4 node of the M1 mesh.

20000

18000
SYSPIPE

) 16000
Code_Aster

.m
NR

14000
T
(

in 12000

I
valley 10000

U
8000

T
éq

E
N
6000
m

O
4000

m
2000

0

0
5
10
15
20
25
30

ABSC_CURV (m)

Appear secondary component 4.2.2-a: - field of equivalent moment

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
15/16

· Code_Aster reference

The solution is obtained with operator MECA_STATIQUE by imposing on the N45 node them
displacements DX=ucos and DY=usin.

Generalized efforts: EFGE_ELNO_DEPL (N.m)

NET NODE
CMP Code_Aster
Reference %
variation
M52 N1 MT - 3514,643 - 3514,643
0,000
MFY
- 8718,626 - 8718,626
0,000
MFZ
3839,959 3839,959 0,000
M40 N3 MT - 3498,378 - 3498,378
0,000
MFY
4627,678 4627,678 0,000
MFZ
- 6559,864 - 6559,864
0,000
M43 N4 MT - 5466,298 - 5466,298
0,000
MFY
- 2661,552 - 2661,552
0,000
MFZ
707,119 707,119 0,000
M5 N8 MT - 5451,862 - 5451,862
0,000
MFY
- 7813,834 - 7813,834
0,000
MFZ
- 1373,902 - 1373,902
0,000
M44 N12 MT - 5452,502 - 5452,502
0,000
MFY
232,577 232,577 0,000
MFZ
16264,520 16264,520
0,000
M47 N13 MT - 1080,825 - 1080,825
0,000
MFY
- 4608,238 - 4608,238
0,000
MFZ
17959,849 17959,849
0,000
M24 N28 MT - 1090,004 - 1090,004
0,000
MFY
616,317 616,317 0,000
MFZ
- 581,559 - 581,559 0,000
M48 N43 MT - 1087,843 - 1087,843
0,000
MFY
1008,866 1008,866 0,000
MFZ
18334,269 18334,269
0,000
M51 N44 MT - 1295,762 - 1295,762
0,000
MFY
- 803,728 - 803,728 0,000
MFZ
16745,356 16745,356
0,000
M39 N45 MT - 1298,075 - 1298,075
0,000
MFY
14896,226 14896,226
0,000
MFZ
680,911 680,911 0,000

Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Code_Aster ®
Version
6.4
Titrate:
Seismic SDLL131- Calcul of a piping VVP. Comparison Aster-SYSPIPE Dates:
05/03/04
Author (S):
Y. PONS, D. NUNEZ *, L. VIVAN * Key
:
V2.02.131-A Page:
16/16

5
Summary of the results

The answers obtained with the two codes are very close. Variations surplus not 1% on
primary and secondary components. More important differences are observed in
elbows. The latter are modelled with a curved element in SYSPIPE and 4 elements
POU_C_T in Code_Aster.
Handbook of Validation
V2.02 booklet: Linear dynamics of the beams
HT-66/04/005/A

Outline document