پیوندهای مفید
آمار
| تعداد نشریات | 8 |
| تعداد شماره‌ها | 425 |
| تعداد مقالات | 5,549 |
| تعداد مشاهده مقاله | 6,496,222 |
| تعداد دریافت فایل اصل مقاله | 5,552,976 |
The Buckling Analysis of Conical Sandwich Shells with Temperature Dependent Properties and an Improved High-Order Theory | ||
| AUT Journal of Mechanical Engineering | ||
| مقاله 10، دوره 3، شماره 1، مرداد 2019، صفحه 95-106 اصل مقاله (1.57 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2017.13428.5630 | ||
| نویسندگان | ||
| J. seidi* 1؛ S.M.R. Khalili2 | ||
| 1Faculty of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
| 2Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran | ||
| چکیده | ||
| In this research paper, an improved theory is used for buckling analysis of sandwich truncated conical shells with thick core and thin functionally graded material face sheets and homogeny core and with temperature-dependent properties. Section displacements of the conical core are assumed by cubic functions, and displacements of the functionally graded material face sheets are assumed by first-order shear displacements theory. The linear variations of temperature are assumed in the through thick. According to a power-law and exponential distribution the volume fractions of the constituents of the functionally graded material face sheets are assumed to be temp-dependent by a third-order and vary continuously through the thickness. In other words to get the strain components, the nonlinear Von-Karman method and his relation is used. The equilibrium equations are obtained via minimum potential energy method. Analytical solution for simply supported sandwich conical shells under axial compressive loads and thermal conditions is used by Galerkin’s solution method. Analysing the results show that the critical dimensionless axial loads are affected by the configurations of the constituent materials, compositional profile variations, thermal condition, semi-vertex angle and the variation of the sandwich geometry. Numerical modeling is made by ABAQUS finite element software. The comparisons show that the present results are in the good and better agreement with the results in the literature and the present finite element modelling. | ||
| کلیدواژه‌ها | ||
| Conical sandwich shells؛ Functionally graded material؛ Simply supported؛ Buckling؛ Analytical solution | ||
| مراجع | ||
|
[1] R. Mohammadzadeh, M.M. Najafizadeh, M. Nejati, Buckling of 2D-FG Cylindrical Shells under Combined External Pressure and Axial Compression, Advances in Applied Mathematics and Mechanics, 5(3) (2015) 391- 406. [2] C.-P. Wu, Y.-C. Chen, S.-T. Peng, Buckling analysis of functionally graded material circular hollow cylinders under combined axial compression and external pressure, Thin-Walled Structures, 69 (2013) 54-66. [3] F. Plantema, Sandwich Construction, New York: Johen Wiley & Inc, (1966). [4] Y. Frostig, M. Baruch, O. Vilnay, I. Sheinman, High-Order Theory for Sandwich-Beam Behavior with Transversely Flexible Core, 1992. [5] E. Bozhevolnya, J. Sun, Free Vibration analysis of Sandwich Beams, Sandwich struct Matter, 6 (2004) 47-76. [6] Y. Frostig, O.T. Thomsen, High-order free vibration of sandwich panels with a flexible core, International Journal of Solids and Structures, 41(5) (2004) 1697-1724. [7] G. Schwarts, Y. Frostig, Free Vibrationof Delaminated Unidirectional Panels with a Transversely Flexible Core and General Boundary Conditions-a High-order Approach - Google Search, J Sandwich Struct Mater, 10 (2008) 99-131. [8] A. Noor, J. M. Peters, W. Scott Burton, Three-Dimensional Solutions for Initially Stressed Structural Sandwiches, 1994. [9] W. Ji, A. Waas, Global and Local Buckling of a Sandwich Beam, 2007. [10] W. Ji, A.M. Wass, Elastic analysis of Sandwich Panel Buckl Problem: Benchomark Solutions and Finite Element Formulations, ZAMP, 61 (2010) 897-917. [11] T. Kant, K. Swaminathan, Analytical solutions for the static analysis of laminated composite and sandwich plates based on a higher order refined theory, Composite Structures, 56(4) (2002) 329-344. [12] A.K. Nayak, R.A. Shenoi, S.S.J. Moy, Dynamic response of composite sandwich plates subjected to initial stresses, Composites Part A: Applied Science and Manufacturing, 37(8) (2006) 1189-1205. [13] D. Bushnell, S. Smith, Stress and buckling of nonuniformly heated cylindrical and conical shells, AIAA Journal, 9(12) (1971) 2314-2321. [14] J.B. Dafedar, Y.M. Desai, A.A. Mufti, Stability of sandwich plates by mixed, higher-order analytical formulation, International Journal of Solids and Structures, 40(17) (2003) 4501-4517. [15] M. Koizumi, FGM activities in Japan, Composites Part B: Engineering, 28(1) (1997) 1-4. [16] S. Suresh, A. Mortnsen, Fundementals of Functionally Materials, IOM Communications, London, (1998). [17] B. Sankar, J. T. Tzeng, Thermal Stresses in Functionally Graded Beams, 2002. [18] N. FIN, Buckling of Conical Shells Subjected to External Lateral Pressure, Trans Roy Inst Technol, Stockholm, 10 (1947) 1-21. [19] K. M. Mushtari, A. V. Sachenkov, Stability of Cylindrical and Conical Shells of Circular Cross Section, with Simultaneous Action of Axial Compression and External Normal Pressure, 1958. [20] A.H. Sofiyev, The stability of functionally graded truncated conical shells subjected to aperiodic impulsive loading, International Journal of Solids and Structures, 41(13) (2004) 3411-3424. [21] L.K. Chang, S.Y. Lu, Thermal buckling of conical shells, AIAA Journal, 5(10) (1967) 1877-1882. [22] L.K. Chang, S.Y. Lu, Nonlinear thermal elastic buckling of conical shells, Nuclear Engineering and Design, 7(2) (1968) 159-169. [23] P.C. Dumir, G.P. Dube, A. Mallick, Axisymmetric static and dynamic buckling of laminated thick truncated conical cap, 2003. [24] J. Blachut, O. Ifayefunmi, M. Corfa, Collapse and Buckling of Conical Shells, 2011. [25] J. Kim, S.-R. Lee, S.-S. Park, Analyses of thrust bearings in scroll compressors considering keyways, Tribology International, 43(4) (2010) 728-736. [26] J. Singer, A. Eckstein, M. Baruch, BUCKLING OF CONICAL SHELLS UNDER EXTERNAL PRESSURE, TORSION AND AXIAL COMPRESSION, 1962. [27] J. Singer, The Effect of Axial Constraint on the Instability of Thin Conical Shells Under External Pressure, Journal of Applied Mechanics, 29(1) (1962) 212-214. [28] G.A. Thurston, Effect of Boundary Conditions on the Buckling of Conical Shells Under Hydrostatic Pressure, Journal of Applied Mechanics, 32(1) (1965) 208-209. [29] M. Baroch, Harar, J. Singr, Infuence of in-plane Boundary Condition on the Stability of Conical Shells Under Pressure, .Israel J Technol, 5 (1967) 12-24. [30] M.M. Kheirikhah, S.M.R. Khalili, K. Malekzadeh Fard, Biaxial buckling analysis of soft-core composite sandwich plates using improved high-order theory, European Journal of Mechanics - A/Solids, 31(1) (2012) 54-66. [31] J. seidi, S.M.R. Khalili, Analytical of sandwich truncated conical shell with nano FGM layers in high order theory, Mechanical and Mechatoronic conferene, Tehran. Iran, (2016), (In Persian). [32] J. seidi, S.M.R. Khalili, Buckling Analytcal of sandwich truncated conical shell with three order theory, Civil, Electric and Mechanical conferene, Gorgan. Iran, (2014), (In Persian). [33] J. seidi, S.M.R. Khalili, Analytcal of sandwich truncated conical shell with soft core and FGM layers in high order theory, Mechanical engineering and Electric conferene, Tehran. Iran, (2015), (In Persian). [34] N. I. Karpov, O. A. Karpova, Stability of conical shell under combined load, 1981. [35] A.H. Sofiyev, The buckling of FGM truncated conical shells subjected to combined axial tension and hydrostatic pressure, Composite Structures, 92(2) (2010) 488-498. [36] A.H. Sofiyev, On the buckling of composite conical shells resting on the Winkler–Pasternak elastic foundations under combined axial compression and external pressure, Composite Structures, 113 (2014) 208-215. [37] J.N. Reddy, Thermal Mechanical Behavior of Functionally Graded Materials, Texas, 2(21-30) (1998). [38] F. Javad, M.H. Hajmohammadi, Study Effect of Geometrical Parameters on the Buckling of Cylindrical Shells under Hydrostatic Pressure, Indian Journal of Science Technology, 6(11) (2013) 5527-5532. [39] B.S. Golzan, H. Showkati, Buckling of thin-walled conical shells under uniform external pressure, Thin-Walled Structures, 46(5) (2008) 516-529. | ||
|
آمار تعداد مشاهده مقاله: 960 تعداد دریافت فایل اصل مقاله: 612 |
||