Buckling and Vibration of Stiffened Plates


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Abstract


The buckling and dynamic characteristics of stiffened plates subjected to dead loads are studied using the finite element method. In structural modeling, the plate and the stiffener are treated as separate elements where the displacement compatibility transformation between these two types of elements takes into account the constraint torsional warping effect in the stiffener. The development is based on a general beam theory, which includes the effect of flexural-torsion coupling, constrained torsion warping, and shear center location. The virtual work principle includes the second order terms of finite beam rotations. Numerical tests are presented to demonstrate the importance of torsion warping constraints
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Keywords


Finite Element; Stiffener; Free Vibration; Buckling Load; Constraint Torsion

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References


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