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The Plymouth Student Scientist

Document Type

Engineering, Computing and Mathematics Article

Abstract

A four-fold increase in global sea traffic over the past twenty years has led to an increased risk of ship impact on dock infrastructure. Ship impact is a highly non-linear process and it is important that the elastic and plastic behaviour of caissons subjected to ship impact is well understood so that they can be sufficiently designed against it. This project used LUSAS finite element analysis software to perform a time history analysis of a proposed steel caisson subjected to five different ship impact loads and from the results compares the behaviour of each impact case to gain a better understanding of impact behaviour. The main conclusion is that increased ship mass means an increase in kinetic energy which leads to increased plastic behaviour within the caisson. The maximum plastic strain within the caisson was 0.15% and the permanent deformation was 2.70mm. Another conclusion was that the proposed steel caisson is sufficiently designed to safely withstand ship impact from a 1500 tonne vessel traveling at 0.5m/s with only local plastic deformation occurring.

Publication Date

2018-07-01

Publication Title

The Plymouth Student Scientist

Volume

11

Issue

1

First Page

129

Last Page

169

ISSN

1754-2383

Deposit Date

May 2019

Embargo Period

2024-07-03

URI

http://hdl.handle.net/10026.1/14176

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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