Strength of ship plates under combined loading |
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| Institution: | 1. School of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University, 1954 Hua Shan Road, Shanghai 200030, People''s Republic of China;2. China Ship Scientific Research Center, P.O. Box 116, Wuxi, Jiangsu 214082, People''s Republic of China;3. Department of Naval Architecture and Offshore Engineering, Technical University of Denmark, Building 101E, DK-2800 Lyngby, Denmark;1. Ocean Engineering Department – COPPE - Federal University of Rio de Janeiro, Rio de Janeiro, Brazil;2. Petrobras S.A., R. Marquês do Herval, 90 -Valongo, Santos-SP, Brazil;3. Curso de Tecnologia em Construção Naval, Fundação Centro Universitário Estadual da Zona Oeste – UEZO, Rio de Janeiro, RJ, Brazil |
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| Abstract: | Strength of ship plates plays a significant role in the ultimate strength analysis of ship structures. In recent years several authors have proposed simplified analytical methods to calculate the ultimate strength of unstiffened plates. The majority of these investigations deal with plates subjected to longitudinal compression only. For real ship structural plating, the most general loading case is a combination of longitudinal stress, transverse stress, shear stress and lateral pressure. In this paper, the simplified analytical method is generalized to deal with such combined load cases. The obtained results indicate that the simplified analytical method is able to determine the ultimate strength of unstiffened plates with imperfections in the form of welding-induced residual stresses and geometric deflections subjected to combined loads. Comparisons with experimental results show that the procedure has sufficient accuracy for practical applications in design. |
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