Czasopismo
2009
|
Vol. 57, iss. 2
|
71-87
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Języki publikacji
Abstrakty
The shape of end heads of a pressure vessel is usually torispherical. Buckling of this head is one of the most important points for designing of pressure vessels. This subject has been studied extensively since last years. In this field, the experimental methods are expensive and need a lot of time. In addition, because of lack of accuracy in the producing procedure, sometimes two models with identical geometry show different buckling behavior. Hence the use of finite element method in analyzing of buckling behavior of heads has a lot of benefits. In this dissertation, the finite element method has been used. Firstly with nonlinear buckling analysis, the effects of geometrical parameters such as thickness, knuckle radius and diameter of cylindrical part. on the buckling of heads have been studied, then the buckling behavior of different kinds of heads with identical geometry have been analyzed. For the nonlinear analysis we used the Arc Length method which can control the load level, the length of the displacement increment and the maximum displacement. The most important characteristic of this method is its ability to converge, even when the behavior is highly nonlinear. From the verification performed with the European Convention for Constructional Steelwork (ECCS) code, it has been confirmed that the nonlinear buckling analysis could assure accurate results for the buckling strength. In the case of internal pressure, it has been shown that initial imperfection had no effect on the pre-buckling behavior and buckling pressure of head; it just affects the post-buckling behavior.
Czasopismo
Rocznik
Tom
Strony
71-87
Opis fizyczny
Bibliogr. 16 poz., rys., wykr.
Twórcy
autor
autor
- University of Tabriz Faculty of Engineering Mechanical Engineering Department, Tabriz, Iran
Bibliografia
- 1. J. G. TENG and T. HONG, Non-linear thin shell theories for numerical buckling predictions, Journal of Thin-Walled Structures, 31, 89-115. 1998.
- 2. X. WANG, J. XIAO and Y. C. ZHANG, A method for solving the buckling problem of a thiheln walled si, International Journal of pressure vessels and piping, 81. 907-912. 2004.
- 3. R. PINNA and B. F. RONALD, Hydrostatic buckling of shells with various boundary conditions. Journal of Constructional Steel Research, 56, 1-16, 2000.
- 4. J. G. TENG and C. Y. SONG, Numerical models for nonlinear analysis of elastic shells with eigenmode-affine imperfections, International Journal of Solids and Structures. 38. 3263-3280, 2001.
- 5. J. BLACHUT, Buckling of sharp knuckle torispheres under external pressure, Thin walled structure. 30, 1-4, 55-77, 1998.
- 6. European Convention for Constructional Steelwork ECCS, Technical Working Group 8.4 [Ed.]. Buckling of steel shells, European Recommendation, 4th Edition. ECCS. Brussels 1998.
- 7. W. WUNDERLICH and U. ALBERTIN, Buckling behavior of imperfect spherical shells. International Journal of Non-Linear Mechanics. 37. 589-604, 2002.
- 8. ANSYS Release 9.0, ANSYS Inc., 2003, Canonsburg, Pensylvania.
- 9. Y. ZHAO and J. G. TENG, A stability design proposal for cone-cylinder intersections under internal pressure, Int. J. of Pressure and Vessel and Piping, 80, 5, 297-309. 2003.
- 10. S. KENNY, N. PEGG and F. TAHERI, Dynamic elastic buckling of a slender beam with geometric imperfections subject to an axial impulse. Finite element in analysis and design. 35, 227-246, 2000.
- 11. V. P. VEEDU and L. A. CARLSSON, Finite-element buckling analysis of sandwich columns containing a face/core debond, Composite Structures, 69, 143-148, 2005.
- 12. G. J. TURVEY and Y. ZHANG, A computational and experimental analysis of the buckling, post-buckling and initial failure of pultruded GRP columns, Journal of Computers and Structures. 84, 1527-1537, 2006.
- 13. J. G. TENG. Elastic buckling of cone-cylinder intersection under localized circumferential buckling. Journal of Engineering Structure. 18. 41. 1996.
- 14. J. G. TENG and M. HONG-WEI, Elastic buckling of ring-stiffened cone-cylinder intersections under internal pressure, ASME International Journal of Mechanical Science. 41. 357-383. 1996.
- 15. C. D. MILLER, Buckling criteria for torispherical heads under internal pressure, International Journal of Pressure Vessel Technology. 123, 318-323, Aug. 2001.
- 16. R. T. SHIELD and D. C. DRUCKER, Design of thin-walled torispherical and toriconical pressure vessel heads, ASME Int. Journal of Applied Mechanics, 28, 292-297. 1961.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BPB2-0040-0009