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An experimental study of ultimate torsional strength of a ship-type hull girder with a large deck opening
Institution:1. Department of Mechanical Engineering, Purdue University, West Lafayette, USA;2. Indian Institute of Technology, Kharagpur, India;1. Key Laboratory of High Performance Ship Technology of Ministry of Education, School of Transportation, Wuhan University of Technology, Wuhan 430063, China;2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE), Shanghai 200240, China;3. Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1049-001, Portugal;1. MARIN, Maritime Research Institute, Wageningen, Netherlands;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
Abstract:This paper presents the results of an experimental investigation to determine the torsional ultimate strength of a ship-type hull girder with a large deck opening. Two models with the same dimensions and scantlings were designed to reflect the possible modes of failure under pure torque. A comparison between nonlinear finite element calculations and the experimental results for the two models is presented. The effect of different assumptions and of the variation of different parameters is studied.
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