The main target of this research is to identify the effects of camber parabolic curvature on the ultimate strength and behavior of stiffened plates under in-plane compression. A parametric model for the study of the problem is created. The model includes different parameters related to plate, stiffeners, and also parabolic camber curvature. Three distinct sensitivity cases are assumed. In each sensitivity case, many different models are analyzed and their ultimate strengths are obtained using an in-house finite element program. Ultimate strength and behavior of the models with different ratios of parabolic curvature are compared to each other and interpreted.

References

1.
Bushnell
,
D.
,
1985
,
Computerized Buckling Analysis of Shells
,
Martinus Nijhoff
,
The Netherlands
.
2.
Das
,
P. K.
,
Thavalingam
,
A.
, and
Bai
,
Y.
,
2003
, “
Buckling and Ultimate Strength Criteria of Stiffened Shells Under Combined Loading for Reliability Analysis
,”
Thin-Walled Struct.
,
41
, pp.
69
88
.10.1016/S0263-8231(02)00093-9
3.
Mazaheri
,
M. J.
,
2005
, “
Elastic Buckling Analysis of Circular Stiffened Shells
,” MS.c. thesis, Faculty of Marine Technology, Amirkabir University of Technology, Tehran, Iran.
4.
Khedmati
,
M. R.
,
Mazaheri
,
M. J.
, and
Karimi
,
A. R.
,
2006
, “
Parametric Instability Analysis of Stringer Stiffened Circular Cylindrical Shells Under Axial Compression and External Hydrostatic Pressure
,”
Proceedings of the 8th International Conference on Computational Structures Technology
,
Canary Islands, Spain
.
5.
Jiang
,
J.
, and
Olson
,
M. D.
,
1994
, “
Nonlinear Analysis of Orthogonally Stiffened Cylindrical Shells by a Super Element Approach
,”
Finite Elem. Anal. Design
,
18
, pp.
99
110
.10.1016/0168-874X(94)90094-9
6.
Mao
,
R.
, and
Lu
,
G.
,
2001
, “
Plastic Buckling of Circular Cylindrical Shells Under Combined In-Plane Loads
,”
Int. J. Solids Struct.
,
38
, pp.
741
757
.10.1016/S0020-7683(00)00041-X
7.
Pinna
,
R.
, and
Ronalds
,
B. F.
,
2003
, “
Buckling and Postbuckling of Cylindrical Shells With One End Pinned and the Other End Free
,”
Thin-Walled Struct.
,
41
, pp.
507
527
.10.1016/S0263-8231(03)00006-5
8.
Shanmugam
,
N. E.
,
Mahendrakumar
,
M.
, and
Thevendran
, V
.
,
2003
, “
Ultimate Load Behaviour of Horizontally Curved Plate Girders
,”
J. Constr. Steel Res.
,
59
, pp.
509
529
.10.1016/S0143-974X(02)00043-3
9.
Aghajari
,
S.
,
Abedi
,
K.
, and
Showkati
,
H.
,
2006
, “
Buckling and Post-Buckling Behavior of Thin-Walled Cylindrical Steel Shells With Varying Thickness Subjected to Uniform External Pressure
,”
Thin-Walled Struct.
,
44
, pp.
904
909
.10.1016/j.tws.2006.08.015
10.
Edalat
,
P.
,
2008
, “
Finite Element Study of the Effects of Longitudinal/Transverse Curvature on the Buckling/Ultimate Strength and Behavior of Deck Structure
,” MS.c. thesis, Faculty of Marine Technology, Amirkabir University of Technology, Tehran, Iran.
11.
ULSAS
,
2008
, “
An In-House Finite Element Computer Code for Non-Linear Analysis of Structures
,” Hiroshima and Osaka Universities, Japan.
12.
Jensen
,
J. J.
,
1997
, “
Report of Committee III. 1, Ultimate Strength
,”
Proceedings of the 13th International Ship and Offshore Structures Congress
,
Trondheim, Norway
, pp.
233
283
.
13.
Yao
,
T.
,
2000
, “
Report of Committee VI. 2, Ultimate Hull Girder Strength
,”
Proceedings of the 14th International Ship and Offshore Structures Congress
,
Nagasaki, Japan
, pp.
321
391
.
14.
Toi
,
Y.
,
Yuge
,
K.
,
Nagayama
,
T.
, and
Obata
,
K.
,
1988
, “
Numerical and Experimental Studies on the Crashworthiness of Structural Members
,”
Naval Arch. Ocean Eng.
,
26
, pp.
91
101
.
15.
Yamada
,
Y.
,
1980
,
Plasticity and Visco-Elasticity
,
Baifukan
,
Tokyo
, pp.
44
51
.
16.
Kanok-Nukulchai
,
W.
,
1979
, “
A Simple and Efficient Finite Element for General Shell Analysis
,”
Int. J. Numer. Methods Eng.
,
14
, pp.
179
200
.10.1002/nme.1620140204
17.
Flanagon
,
D. P.
, and
Belytschko
,
A.
,
1981
, “
A Uniform Strain Hexahedron and Quadrilateral With Orthogonal Hourglass Control
,”
Int. J. Numer. Methods Eng.
,
17
, pp.
679
706
.10.1002/nme.1620170504
18.
Khedmati
,
M. R.
,
2000
, “
Ultimate Strength of Ship Structural Members and Systems Considering Local Pressure Loads
,” Ph.D. thesis in Structural Engineering, Graduate School of Engineering, Hiroshima University, Hiroshima, Japan.
19.
Yao
,
T.
,
Nikolov
,
P. I.
, and
Miyagawa
,
Y.
,
1992
, “
Influence of Welding Imperfections on Stiffness of Rectangular Plates under Thrust
,”
Proceedings of the IUTAM Symposium on Mechanical Effects of Welding
,
K.
Karlsson
,
L. E.
Lindgren
, and
M.
Jonsson
, eds.,
Springer-Verlag
,
Berlin
, pp.
261
268
.
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