Hull girder fatigue strength of corroding oil tanker

Parunov, Joško and Žiha, Kalman and Mage, Paulo and Jurišić, Paul (2010) Hull girder fatigue strength of corroding oil tanker. = Hull girder fatigue strength of corroding oil tanker. In: International Workshop "Advanced Ship Design for Pollution Prevention", ASDEPP 2010, 23-24.11.2009., Split; Croatia.

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The paper describes the fatigue strength assessment of oil tanker hull girder taking into account degradation of ship hull due to the corrosion. Hull girder degradation is represented as time-varying stress increase caused by time-varying loss of midship section modulus. Nonlinear function representing hull girder section modulus loss is based on recently published corrosion measurements on large number of single-hull oil tankers. Fatigue damage accumulation is calculated for different corrosion severities by integrating time-varying instantaneous fatigue damage. Proposed method represents an improvement of the fatigue assessment procedure compared to Common Structural Rules, as the "rule" method is based on simplified assumption that corrosion wastage is constant in whole lifetime of the vessel. The paper also considers the fatigue yielding due to possible worsening of fatigue resistance due to alternating load cases and load variability in addition to the lifetime shortening due to corrosion. © 2010 Taylor & Francis Group, London.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Alternating loads; Common structural rules; Corrosion measurements; Corrosion severity; Corrosion wastage; Fatigue assessments; Fatigue damage accumulation; Fatigue strength; Fatigue strength assessment; Hull girder; Modulus loss; Nonlinear functions; Ship hull; Time varying; Time-varying stress; Corrosion; Degradation; Design; Fatigue damage; Oil tankers; Pollution; Shipbuilding; Hulls (ship)
Subjects: TECHNICAL SCIENCE > Shipbuilding
Divisions: 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
600 Department of Naval Engineering and Marine Technology > 640 Chair of Shipbuilding Technology
Indexed in Web of Science: No
Indexed in Current Contents: No
Citations SCOPUS: 2 (04.10.2017.)
Date Deposited: 17 Apr 2015 06:55
Last Modified: 04 Oct 2017 12:22

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