A NEW SIMPLIFIED CLOSED-FORM INTERACTION FORMULATIONS FOR EVALUATION OF STRUCTURAL RESPONSE OF STIFFENED PLATES
A NEW SIMPLIFIED CLOSED-FORM INTERACTION FORMULATIONS FOR EVALUATION OF STRUCTURAL RESPONSE OF STIFFENED PLATES
A semi-analytical model for ultimate strength capacity assessment of stiffened plates has been developed based on ANSYS non-linear elasto-plastic buckling analyses of a wide range of typical ship panel geometries. The primary aim of the present study is to investigate the ultimate strength interaction relationship of a stiffened plate subject to combine loads with imperfections in the form of geometric deflections and welding induced residual stresses. The accuracy of the interaction relationship is confirmed by use of inelastic finite element calculations. Comparison is performed with existing ship rules used by Classification Societies as well. The results and insights derived from the present work are summarized in great detail
Keywords:
Finite Element Analysis, Initial Imperfection, Interaction Formulas, Ship Hull Ultimate Strength,
___
- Bonello, M.A.; Chryssanthopouls, M.K.; Dowling, P.J. Ultimate Strength Design of Stiffened Plates under Axial Compression and Bending, Marine Structure, 1993, Vol. 6, pp. 532-552.
- Faulkner, D. A review of Effective Plating for use in the Analysis of Stiffened Plating in Bending and Compression, Journal of Ship Research, 1975, Vol. 19, No. 1, pp. 1-17.
- Grondin, G.Y.; Chen, Q.; Elwi A.E.; Cheng J.J.R. Buckling of Stiffened Steel Plates- Validation of a Numerical Model, Journal of Constructional Steel Research, 1998, Vol. 45, No. 2, pp. 125-148.
- Grondin, G.Y.; Chen, Q.; Elwi, A.E.; Cheng J.J.R. Buckling of Stiffened Steel Plates- A Parametric Study, Journal of Constructional Steel Research, 1999, Vol. 50, No. 2, pp. 151-175. [5] Hu, S.Z.; Chen, Q.; Pegg, N.; Zimmercman, T.J.E. Ultimate Collapse tests of Stiffened Plate Ship Structural Units, Marine Structure, 1997, Vol. 10, pp. 587-610.
- Hughes, O.F.; Ghosh, B.; Chen, Y. Improved Prediction of Simultaneous Local and Overall Buckling of Stiffened Panels, Thin-Walled Structures, Vol. 42, pp. 827-856, 2004. [7] Murray N.W., Buckling of Stiffened Panel Loaded Axially and in Bending. Structure Engineer, 1973, Vol. 51, No. 8, pp. 285-301.
- Steen, E.; Byklum, E.; Vilming, K.; Ostvolds, K. Computerized Buckling Models for Ultimate Strength Assessment of Stiffened Ship Hull Panels, 9th Symposium on Practical Design of Ships and Other Floating Structures, 2004, Luebeck-Travemuende, Germany.
- Wood, R.H. Plastic and Inelastic Design of Slabs and Plates, The Ronald Press, 1961, New York.
- Chaithanya, P.P.; Das, P.K.; Crow, A.; Hunt, S. The effect of distortion on the buckling strength of stiffened panels. Ships and Offshore Structures, 2010, Vol.5.
- Xu, M.C.; Soares, C.G. Numerical assessment of experiments on the ultimate strength of stiffened panels, Engineering Structures, 2012, Vol.45, pp. 460–471.
- Ozguc, O.; Das, P.K.; Barltrop, N. The new simple design equations for the ultimate compressive strength of imperfect stiffened plates. Ocean Engineering, 2007, Vol. 34, Issue 7, pp. 970–986. [12] Paik, J.K.; Kim, B.J.; Seo, J.K. Methods for ultimate limit state assessment of ships and ship-shaped offshore structures: Part II stiffened panels. Ocean Engineering, 2008, Volume 35, Issue 2, pp. 271–280.
- Tekgoz, M.; Garbatov, Y.; Soares, C.G. Ultimate strength assessment for the effect of finite element modelling. Maritime Engineering and Technology, 2012.
- Cho, S.R.; Kim, H.S.; Doh, H.M.; Chon, Y.K. Ultimate strength formulation for stiffened plates subjected to combined axial compression, transverse compression, shear force and lateral pressure loadings. Ships and Offshore Structures, 2013, Vol.8.
- Zhang, S. A. review and study on ultimate strength of steel plates and stiffened panels in axial compression. Ships and Offshore Structures, 2016, Vol.11.
- Başlangıç: 2015
- Yayıncı: İstanbul Teknik Üniversitesi