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Nonlinear Buckling Analysis of Composite Shells under Axial Load
Journal: Journal of Automotive and Applied Mechanics
Issue: Journal of Automotive and Applied Mechanics (Volume: 2, Issue: 1)
Author: Milad Abdi , Zahra Zamirian , Masoud Mohammadi
Keywords : SHELL , FINITE ELEMENT , BUCKLING , AXIAL LOAD , POST BUCKLING
Abstract:

This paper analyze the nonlinear buckling and post buckling of thin composite cylindrical shells under axial load. In order to analyze and validate the results of analytical and numerical methods are used. In this paper the effects of orthotropic materials, boundary conditions, geometry, geometric imperfections and buckling modes of thin-walled composite cylindrical shells are studied. Static buckling of shells under axial load obtained for two type of lay up. This calculatio was applied to finding the critical buckling load with some methods that included the linear static analysis of to modes shape of buckling, nonlinear static analysis (Analysis Riks) and dynamic analysis (explicit). The results, showed less difference in response to dynamic analysis to analytical solution method compared with other methods. It also became clear that the nonlinear static analysis, the smallest difference with the experimental test response is compared to other methods. In the first cylindrical shell without of geometric imperfections and then the effects of imperfections modeled and studied.Type text or a website address or translate a document.CancelDid you mean:The results showed that the static buckling load decreases with increasing structural geometric imperfections. Sensitivity to geometric imperfections depends on the type of lay up.

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