Mechanics in Engineering ›› 2004, Vol. 26 ›› Issue (2): 0-0.doi: 10.6052/1000-0879-2003-245
• Education Study •
The grid shape, skin thickness and stiffener size
of a stiffened cylinder shell have a dramatical effect on the buckling
loads. To achieve the minimum weight in this kind of structural design, a
3-D finite-element model using ABAQUS software is built.
is carried out and general conclusions are drawn. The numerical results show
that the axial buckling resistance and the buckling failure modes vary as
the stiffener size and the skin thickness change. The buckling
resistance reaches the
maximum at the critical point where the global buckling failure mode
transforms to the local buckling failure mode of the stiffened shell.
According to this property, an optimal design strategy for orthogrid
stiffened cylinder shells is developed. An example of the optimal design of
the grid stiffened cylinder shell presented in the paper shows the
validity of the present method.
buckling analysis, finite element method, optimal design, stiffened
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