Code_Aster
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Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
1/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
Organization (S):
EDF/AMA
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
Document: V3.03.119
SSLS 119 - Subjected embedded hook
with a sharp effort at its end
Summary:
This test represents a static calculation of an embedded hook subjected to a shearing force, consisted of one
elastic material. This test makes it possible to validate following modelings finite elements:
·
DST (QUAD4),
·
DKT (QUAD4),
·
COQUE_3D (QUAD9),
·
COQUE_3D (TRIA7),
·
linear 3D (HEXA8) and quadratic (HEXA20).
One studies blocking in transverse shearing particularly there.
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
2/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
1
Problem of reference
1.1 Geometry
1.2
Properties of material
The properties of material constituting the beam are:
E
= 22752510 AP
Young modulus
= 0.35
Poisson's ratio
1.3
Boundary conditions and loadings
·
C.L. : Embedded side AB
·
Linear force Fz=8.7594 NR/m for the hulls.
·
Surface force Fz=172.4307 NR/m
2
for the 3D.
1.4 Conditions
initial
Without object
X
Y
t=0.0508 m
R=1.1684 m
30°
Height H =0.508 m
C
WITH, B
R=0.3536 m
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
3/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
2
Reference solution
This test makes it possible to test blocking in transverse shearing as well as the effects of the rigidity of
rotation around the normal. It makes it possible to validate the choice
COEF_RIGI_DRZ
= 1. E05, value by
defect of this coefficient. This multiplicative factor makes it possible to affect a fictitious rigidity around
normal of the elements of plate by multiplying minimal rigidity according to the other directions by it
coefficient in order to avoid the singular matrices of rigidity.
2.1
Results of reference
The results of reference result from a calculation by finite elements voluminal:
Value of the deflection out of C: 4.93 in is 1.252 E-01 Mr.
2.2
Uncertainties on the solution
A few % following the refinement of the mesh.
2.3 References
bibliographical
[1]
Raasch Challenge for Shell Elements, N.F. Knight Jr., AIAA Newspaper, vol. 35, N°2, 1997,
p 375-381.
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
4/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
3 Modeling
With
3.1
Characteristics of modeling
DST modeling
Boundary conditions: side AB: U = v =w
= 0
Z
=
X
=
y
=0
Fz
= 8.7594 NR/m
3.2
Characteristics of the mesh
A number of nodes: 2877
A number of meshs and type: 20 (according to Z) x136 (length) QUAD4
3.3 Functionalities
tested
Controls Key word
factor
Key word
AFFE_MODELE MODELING
DST
AFFE_CARA_ELEM HULL
THICK
COEF_RIGI_DRZ
1.E-05
MECA_STATIQUE
4
Results of modeling A
4.1 Values
tested
mesh Identification Reference
Aster %
difference
5 X 34
DZ
1.252 E-01
1.48268 E-01
18.42%
10 X 68
DZ
1.252 E-01
2.38825 E-01
90.75%
20 X 136
DZ
1.252 E-01
4.45694 E-01
256.00%
4.2 Parameters
of execution
Version: NEW 6.01.08
Machine: SGI-Origin2000 R12000
Overall dimension memory: 16 megabytes
Time CPU To use: 15.67 seconds
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
5/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
5 Modeling
B
5.1
Characteristics of modeling
Modeling DKT
Boundary conditions: side AB: U = v =w
=
0
Z
=
X
=
y
=0
Fz
= 8.7594 NR/m
5.2
Characteristics of the mesh
A number of nodes: 2877
A number of meshs and type: 20 (according to Z) x136 (length) QUAD4
5.3 Functionalities
tested
Controls Key word
factor
Key word
AFFE_MODELE MODELING
DKT
AFFE_CARA_ELEM HULL
THICK
COEF_RIGI_DRZ
1.E-05
MECA_STATIQUE
6
Results of modeling B
6.1 Values
tested
mesh Identification Reference
Aster %
difference
5 X 34
DZ
1.252 E01
1.19617 E01
4.81%
10 X 68
DZ
1.252 E01
1.16733 E01
6.76%
20 X 136
DZ
1.252 E01
1.06726 E01
14.75%
6.2 Parameters
of execution
Version: NEW 6.01.08
Machine: SGI-Origin2000 R12000
Overall dimension memory: 16 megabytes
Time CPU To use: 13.23 seconds
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
6/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
7 Modeling
C
7.1
Characteristics of modeling
Modeling COQUE_3_D
Boundary conditions: side AB: U = v =w
= 0
Z
=
X
=
y
=0
Fz
= 8.7594 NR/m
7.2
Characteristics of the mesh
A number of nodes: 11193
A number of meshs and type: 20 (according to Z) x136 (length) QUAD9
7.3 Functionalities
tested
Controls Key word
factor
Key word
AFFE_MODELE MODELING
COQUE_3D
AFFE_CARA_ELEM HULL
THICK
COEF_RIGI_DRZ
1.E-05
MECA_STATIQUE
8
Results of modeling C
8.1 Values
tested
mesh Identification Reference
Aster %
difference
5 X 34
DZ
1.252 E-01
1.31964 E-01
5.40%
10 X 68
DZ
1.252 E-01
1.31574 E-01
5.10%
20 X 136
DZ
1.252 E-01
1.31195 E-01
4.79%
8.2 Parameters
of execution
Version: NEW 6.01.08
Machine: SGI-Origin2000 R12000
Overall dimension memory: 16 megabytes
Time CPU To use: 83.67 seconds
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
7/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
9 Modeling
D
9.1
Characteristics of modeling
Modeling 3D CUB8
Boundary conditions: side AB: U = v =w
=
0
Fz
= 172.4307 NR/m2
9.2
Characteristics of the mesh
A number of nodes: 6072
A number of meshs and type: 10 (according to Z) X 68 (length) X 1 (thickness) HEXA8
9.3 Functionalities
tested
Controls Key word
factor
Key word
AFFE_MODELE MODELING
3D
MECA_STATIQUE
10 Results of modeling D
10.1 Values
tested
mesh Identification Reference
Aster %
difference
5 X 34
DZ
1.252 E01
1.23233 E01
1.57%
10 X 68
DZ
1.252 E01
1.28808 E01
2.88%
20 X 136 X 2
DZ
1.252 E01
1.32292 E01
5.66%
10.2 Parameters
of execution
Version: NEW 6.01.08
Machine: SGI-Origin2000 R12000
Overall dimension memory: 16 megabytes
Time CPU To use: 8.47 seconds
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
8/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
11 Modeling
E
11.1 Characteristics of modeling
Modeling 3D CU20
Boundary conditions: side AB: U = v =w
=
0
Fz
= 172.4307 NR/m2
11.2 Characteristics of the mesh
A number of nodes: 5160
A number of meshs and type: 10 (according to Z) X 68 (length) X 1 (thickness) HEXA20
11.3 Functionalities
tested
Controls Key word
factor
Key word
AFFE_MODELE MODELING
3D
MECA_STATIQUE
12 Results of modeling E
12.1 Values
tested
mesh Identification Reference
Aster %
difference
5 X 34
DZ
1.252 E-01
1.32077 E-01
5.49%
10 X 68
DZ
1.252 E-01
1.33518 E-01
6.64%
20 X 136 X 2
DZ
1.252 E-01
1.34315 E-01
7.28%
12.2 Parameters
of execution
Version: NEW 6.01.08
Machine: SGI-Origin2000 R12000
Overall dimension memory: 16 megabytes
Time CPU To use: 22.54 seconds
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
9/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
13 Modeling
F
13.1 Characteristics of modeling
Modeling COQUE_3_D
Boundary conditions: side AB: U = v =w
=
0
Z
=
X
=
y
=0
Fz
= 8.7594 NR/m
13.2 Characteristics of the mesh
A number of nodes: 11193
A number of meshs and type: 40 (according to Z) x272 (length) TRIA7
13.3 Functionalities
tested
Controls Key word
factor
Key word
AFFE_MODELE MODELING
COQUE_3D
AFFE_CARA_ELEM HULL
THICK
COEF_RIGI_DRZ
1.E-05
MECA_STATIQUE
14 Results of modeling F
14.1 Values
tested
mesh Identification Reference
Aster %
difference
10 X 68
DZ
1.252 E-01
1.3224 E-01
5.62%
20 X 136
DZ
1.252 E-01
1.31835 E-01
5.30%
40 X 272
DZ
1.252 E-01
1.31536 E-01
5.06%
14.2 Parameters
of execution
Version: NEW 6.01.08
Machine: SGI-Origin2000 R12000
Overall dimension memory: 16 megabytes
Time CPU To use: 103.52 seconds
Code_Aster
®
Version
5.0
Titrate:
SSLS119 - Embedded hook subjected to a sharp effort
Date:
05/02/02
Author (S):
P. MASSIN, A LACHAIZE
Key
:
V3.03.119-A
Page:
10/10
Manual of Validation
V3.03 booklet: Linear statics of the plates and hulls
HT-66/02/001/A
15 Summary of the results
The DST element with taking into transverse account of shearing does not seem to converge on it
specific case-test. The elements COQUE_3D triangles and quadrangles with taking into account of
transverse shearing do not present the same behavior and behave it rather of course
test.