Analysis of the ultimate strength of corroded ships involved in collision accidents and subjected to biaxial bending
Paper in proceedings, 2018

This study presents an analysis of the effects of sudden damage, and progressive deterioration due to corrosion, on the ultimate strength of a ship which has been collided by another vessel. Finite element analyses (FEA) of collision scenarios are presented where factors are varied e.g. the vessels involved in the collision, and consider-ation of corroded ship structure elements and their material characteristics in the model. The striking ship is a coastal tanker, the struck ship is either a RoPax ship, or, a coastal oil tanker vessel. The ultimate strength analy-sis of the struck vessel accounts for the shape and size of the damage opening from the FEA. The Smith method is used to calculate the ultimate strength of intact and damaged ship structures during biaxial bending. The study shows how corroded, collision-damaged ship structures suffer from a reduction in crashworthiness and ultimate strength, how this should be considered and modelled in FEA.

Ship collision

Corrosion modelling

Ultimate strength

Finite element method

Smith method

Author

Jonas Ringsberg

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Zhiyuan Li

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Artjoms Kuznecovs

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Erland Johnson

RISE Research Institutes of Sweden

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering (MARTECH 2018)

327-336

Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering (MARTECH 2018)
Lisbon, Portugal,

Chalmers Area of Advance Transport – funding 2017

Chalmers, 2017-01-01 -- 2017-12-31.

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance

Transport

Materials Science

Subject Categories

Applied Mechanics

Vehicle Engineering

Metallurgy and Metallic Materials

Roots

Basic sciences

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

DOI

10.1201/9780429505294-38

ISBN

9781138585393

More information

Latest update

3/1/2019 1