Effects of stiffening parameters on axial buckling of stiffened composite shells
Publish place: International Congress on Science and Engineering
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
GERMANCONF01_149
تاریخ نمایه سازی: 26 مرداد 1397
Abstract:
In the present paper, effects of some parameters of stiffeners on the cylindrical composite shell have been studied on the axial buckling. The stiffeners are arranged in equal intervals and have the same cross-sectional area.To calculate the stiffness of these elements, the reaction between shell and stiffeners was considered.In order to solve the special buckling of these structures, the Ritz method was used and results of numerical simulations were compared. Boundary conditions of the shells were assumed as fixed or simply supported on both ends. Finally, the effects of geometry and type of stiffeners, their orientations with respect to shell axis and their numbers, shell thickness and material, stacking sequence of layers and types of boundary conditions have been investigated. Shell thickness and I and T profiles for stiffeners have maximum effects on increasing the buckling loads. With increasing angle of the stiffeners, the buckling load decreases.
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Authors
Hamed Seifi
Bachelor of Mechanical Science, Malayer University, Malayer
Hossein Najafi
Bachelor of Mechanical Science, Malayer University, Malayer