Accurate discrete modelling of stiffened isotropic and orthotropic rectangular plates. (December 2015)

• Record Type: Journal Article
• Authors: Pydah, Anup; Bhaskar, K.
• Is Part Of: Thin-walled structures. Volume 97(2015)
• Page Start: 266
• Page End: 278
• Publication Date: 2015-12
• Subjects: Stiffened plates -- Elasticity solution -- Shear deformation; Thin-walled structures -- Periodicals; 690.1
• DOI: 10.1016/j.tws.2015.09.021
• Languages: English
• ISSNs: 0263-8231

Abstract

Abstract: An analytical approach is presented here for simply supported blade-stiffened rectangular plates wherein important non-classical effects such as transverse shear deformation and rotary inertia are carefully accounted for. The analysis differs from full three-dimensional modelling of both the plate and the stiffener in that a plane stress idealization is used to model the kinematics of transverse bending of the stiffener while simple one-dimensional classical models are employed for lateral bending and torsion. Parametric studies are used to highlight the importance of non-classical effects in plate and stiffener kinematics and to finally lead to certain recommendations for accurate modelling of stiffened plates. Abstract : Highlights: An accurate analytical formulation for blade-stiffened plates is presented. The three dimensional equations of elasticity are used to model the plate. A plane-stress formulation is used for transverse bending of stiffener. Transverse shear deformation in stiffened vs. nstiffened plates is highlighted. Recommendations given for accurate modelling of stiffened plates