Performance and Stability Analysis of Sub-stiffening for Mechanical Buckling and Post Buckling: A Selective Study
School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
The recent work is a selective study of different types and shapes of stiffeners and sub-stiffeners. The aim is to get an optimum design model of the sub-stiffened panels. We provide a variety of parameters to enhance the stability performance of sub-stiffened panels. We correspondingly perform the numerical study under ABAQUS 6.13 using the RIKS algorithm in the object of defining the critical loads for both buckling and post-buckling; the ultimate strength load represents the initial structure damage. Comparing to a linear sub-stiffened panel, the simulation results show that the grid and curvilinear sub-stiffening can improve the stability performance.
© The Authors, published by EDP Sciences, 2017
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