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research-article

Response of an aluminum stiffened plate under extreme slamming loadings

[+] Author and Article Information
Bin Liu

Key Laboratory of High Performance Ship Technology of Ministry of Education, School of Transportation, Wuhan University of Technology, Wuhan, China; WUT-UL Joint International Laboratory on Extreme Loads and Responses, Wuhan, China
liubin8502@163.com

Richard Villavicencio

Lloyd's Register EMEA, Rotterdam Technical Support Office, Rotterdam, The Netherlands
richard.villavicencio@lr.org

Kun Liu

School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
kunliu@just.edu.cn

Ling Zhu

Key Laboratory of High Performance Ship Technology of Ministry of Education, School of Transportation, Wuhan University of Technology, Wuhan, China; WUT-UL Joint International Laboratory on Extreme Loads and Responses, Wuhan, China
lingzhu@whut.edu.cn

Carlos Guedes Soares

Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal; WUT-UL Joint International Laboratory on Extreme Loads and Responses, Wuhan, China
c.guedes.soares@centec.tecnico.ulisboa.pt

1Corresponding author.

ASME doi:10.1115/1.4042389 History: Received October 05, 2018; Revised December 19, 2018

Abstract

The slamming phenomenon often occurs when the bottom of a ship hits the seawater with a relatively high velocity in irregular waves. In extreme sea conditions, the slam induced dynamic loads can be quite large resulting in local structural damages and/or global deformation of the panels, in particular when ships face head sea waves with high forward speed. In this respect, high-speed vessels are affected by the slamming phenomenon as they are built with thin steel plates and/or aluminum. The paper presents finite element simulations performed with the explicit LS-DYNA solver of an aluminum stiffened plate subjected to extreme slamming loadings so that to evaluate the large plastic deformation and failure of the stiffened plate and the effect of the heat affected zone due to the welding using the mechanical properties of an aluminum alloy grade 5083-H116. The outcomes of this study identify the parameters that have importance when estimating the extent of structural deformation due to slamming loads.

Copyright (c) 2018 by ASME
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