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SEMI-ANALYTICAL SOLUTION OF STABILITY OF COMPOSITE ORTHOTROPIC CYLINDRICAL SHELLS UNDERTIME DEPENDENT A-PERIODIC AXIALCOMPRESSIVE LOAD | ||
| Iranian Journal of Science | ||
| مقاله 10، دوره 30، شماره 3، اسفند 2006، صفحه 343-347 اصل مقاله (208.54 K) | ||
| نوع مقاله: Research Note | ||
| شناسه دیجیتال (DOI): 10.22099/ijsts.2006.2773 | ||
| نویسندگان | ||
| H. SOFIYEV* 1؛ AL. H. SOFIYEV2؛ E. YUSUFOGLU3؛ Z. KARACA4 | ||
| 11Department of Civil Engineering, Suleyman Demirel University, Isparta, Turkey | ||
| 2Technical Sciences Department, Kazakh Branch, Azerbaijan Teachers Institute, Kazakh, Azerbaijan | ||
| 3Department of Mathematics, Dumlupinar University, Kutahya, Turkey | ||
| 4Department of Civil Engineering, Ondokuz Mayis University, Samsun, Turkey | ||
| چکیده | ||
| In this study, the stability problem of a circular orthotropic cylindrical shell under the effect of an axial compression varying with a power function of time is considered. At first, the modified Donnell type dynamic stability and compatibility equations are obtained using Love’s shell theory. Applying the Galerkin method and Rayleigh-Ritz variational techniques to these equations and taking the large values of loading parameters into consideration, analytics are obtained for critical parameter values. The results show that critical parameters are affected by loading parameters variations, ratio of the Young’s moduli variations, radius to thickness variations and the power of time in the axial compression expression variations. Comparing results with those in the literature validates the present analysis. | ||
| کلیدواژهها | ||
| orthotropic material؛ cylindrical shell؛ dynamic critical axial load؛ dynamic factor | ||
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