Abstract
Orthotropic Plate Model of Hat Stiffened Plate has been developed based on the equal rigidity concept that makes use of orthotropy rescaling technique. This Orthotropic Plate Model can readily be analyzed using an orthotropic plate finite element available in the element library of any general-purpose finite element software, which will reduce the effort for modeling, computation and storage required considerably. Orthotropic Plate Model has been developed from representative unit cell of Hat Stiffened Plate for all edges simply supported boundary condition and two edges clamped and two edges simply supported boundary condition. It has been found that the Orthotropic Plate Model developed herein can serve as a structural substitute for Hat Stiffened Plate with four edges simply supported boundary condition. Limitations on the Orthotropic Plate Model with two edges clamped and two edges simply supported boundary condition have been reported.
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