Sensitivity analysis on ultimate strength of aluminium stiffened panels |
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| Institution: | 1. ANAST, University of Liege (FNRS), Chemin des Chevreuils 1, 4000 Liège, Belgium;2. Technical University of Civil Engineering of Bucharest, 124 Lacul Tei Bd. Sect 2, 72302 Bucharest, Romania;3. COPPE, Universidade Federal do Rio de Janeiro, Caixa Postal 68510, Rio de Janeiro 21945-970, Brazil;4. Technische Universität Hamburg-Harburg, Lämmersieth 90, 22305 Hamburg, Germany;5. Technical University of Denmark, Dept. of Naval Architecture and Offshore Engineering, Building 101 E, DK-2800 Kgs. Lyngby, Denmark;6. China Ship Scientific Research Center, P.O. Box 116, Wuxi 214082, China;7. Naval Architecture and Ocean Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan;1. Centre for Advanced Structural Analysis, Centre for Research-based Innovation (CRI), NTNU, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway;2. Department of Structural Engineering, NTNU, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway;3. SINTEF Materials and Chemistry, Rich. Birkelands vei 2B, NO-7491 Trondheim, Norway;4. GE Oil & Gas, Sluppenvegen 12B, NO-7037 Trondheim, Norway;1. Key Laboratory of High Performance Ship Technology of Ministry of Education, School of Transportation, Wuhan University of Technology, Wuhan 430063, China;2. Department of Mechanical Engineering, Technical University of Denmark, Lyngby DK-2800, Denmark;3. Global Technology Centre, Lloyd''s Register EMEA, Southampton S016-7QF, United Kingdom;1. Hyundai Mipo Dockyard Co., Ltd., Ulsan, Republic of Korea;2. School of Naval Architecture and Ocean Engineering, University of Ulsan, Ulsan, Republic of Korea |
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| Abstract: | This paper presents the results of an extensive sensitivity analysis carried out by the Committee III.1 “Ultimate Strength” of ISSC’2003 in the framework of a benchmark on the ultimate strength of aluminium stiffened panels.Previously, different benchmarks were presented by ISSC committees on ultimate strength. The goal has typically been to give guidance to the designer on how to predict the ultimate strength and to indicate what level of accuracy would be expected.This time, the target of this benchmark is to present reliable finite element models to study the behaviour of axially compressed stiffened aluminium panels (including extruded profiles). Main objectives are to compare codes/models and to perform quantitative sensitivity analysis of the ultimate strength of a welded aluminium panel on various parameters (typically the heat-affected zone).Two phases were planned. In Phase A, all members analysed the same structure with a defined set of parameters and using different codes. It was expected that all the codes/models predict the same results. In Phase B, to boost the scope of the analysis, the different members (using their own model) performed FE analyses for a range of variation of different parameters (sensitivity analysis). |
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