(6)Crashworthiness assessment of thin-walled double bottom tanker: Influences of seabed to structural damage and damage-energy formulae for grounding damage calculations
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Aditya Rio Prabowoa,∗, Bo Caob, Jung Min Sohnc, Dong Myung Baec
a Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
bChina Shipbuilding Industry Corporation Economic Research Center, Beijing, China
c Department of Naval Architecture and Marine Systems Engineering, Pukyong National University, Busan, South KoreaReceived 8 October 2019; received in revised form 10 December 2019; accepted 30 March 2020
Available online 13 May 2020
Abstract
This work presents results of numerical analyses with focus on structural performance accounting for seabed topology, and investigation of
energy formulae for application in calculation of grounding damage. Study in this work is divided into three stages, i.e. finite element method
(FEM) verification using laboratory experiment, numerical calculation of ship grounding using FEM, and comparison of the FEM results
with empirical formulae of damage-energy calculation. Fundamental formula of Minorsky is considered with other improvement expression,
such as Woisin and Zhang. Investigation suggested that the recent-developed expression produces the closest estimation to the verified FEM
results. On the other hand, fundamental formulae of Minorsky is the farthest compared to the FEM, which indicates constant value in the
expression needs to be more specific as improved in the Woisin formula.
© 2020 Shanghai Jiaotong University. Published by Elsevier B.V.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Keywords: Ship grounding; impact test; finite element method; damage-energy formula; crashworthiness criteria.