Thin-Walled Structures 42 (2004) 1161–1176 www.elsevier.com/locate/tws Ultimate shear strength of plate elements with pit corrosion wastage Jeom Kee Paik , Jae Myung Lee, Man Ju Ko 1 Department of Naval Architecture and Ocean Engineering, Pusan National University, 30 Jangjeon-Dong, Gumjeong-Gu, Busan 609-735, South Korea Received 30 April 2003; received in revised form 17 February 2004; accepted 17 February 2004 Abstract The aim of the present paper is to investigate the ultimate strength characteristics of steel plate elements with pit corrosion wastage and under in-plane shear loads. A series of the ANSYS nonlinear finite element analyses for plate elements under in-plane shear loads are carried out, varying the degree of pit corrosion intensity and the plate geometric properties. Closed-form design formulae for the ultimate strength of pitted plates under edge shear, which are essentially needed for the ultimate limit state based risk or reliability assessment of corroded structures, are derived by the regression analysis of the computed results. The insights developed from the present study will be very useful for damage tolerant design of plated structures with pit corrosion wastage. # 2004 Elsevier Ltd. All rights reserved. Keywords: Ultimate shear strength; Pit corrosion; General corrosion; Plate elements; Pitted plates; Cor- roded plates 1. Introduction Steel structures such as ships, offshore platforms and land-based structures are prone to suffer various types of damage as they get older. Corrosion and fatigue cracking may be the two most important types of damage in aging structures. Clearly, in such cases, structures that started out being adequate may become mar- ginal later in life or even reach the catastrophic failure state. Corresponding author. Tel.: +82-51-510-2429; fax: +82-51-512-8836. E-mail address: [email protected] (J.K. Paik). 1 Present address: Samsung Heavy Industries, Geoje City, Gyeongnam 656-800, South Korea. 0263-8231/$ - see front matter # 2004 Elsevier Ltd. All rights reserved. doi:10.1016/j.tws.2004.03.024
Ultimate shear strength of plate elements with pit corrosion wastage
May 19, 2023
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