Investigation of the fracture behaviour of epoxy-based water ballast

Simple item page
dc.contributor.advisorIrving, Phil E.
dc.contributor.advisorAyre, David
dc.contributor.advisorDell'Anno, Giuseppe
dc.contributor.authorWu, Tongyu
dc.date.accessioned2015-10-09T10:51:43Z
dc.date.available2015-10-09T10:51:43Z
dc.date.issued2015-07
dc.description.abstractThe fracture of water ballast tank (WBT) coatings due to thermal stresses is widely recognised as an issue. Upon coating fracture, rapid corrosion of the tanker steel structure will occur, leading to expensive structure repairs or even tanker scrapping. In this project, the fracture behaviour of two experimental WBT coatings, referred to as A and B, in the forms of free film and substrated coatings was investigated. Static tensile tests and fatigue tests of the substrated coatings were performed. A finite element model of coating cracking was developed. Thermal stress and J-integral of surface cracking defects in substrated coatings were calculated using the model, in which the effects of defect size, coating thickness, and thermal strain on coating fracture were investigated. For the first time, fracture mechanics was used to explain WBT coating fracture behaviour. The J-integral of surface defects was used to predict the onset strain of coating cracking under mechanical strains in laboratory and under thermal strains in service. A theoretical comparison between the cracking drive forces in terms of J - integrals in WBT coatings under thermal strains and mechanical strains was performed.en_UK
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/9574
dc.language.isoenen_UK
dc.publisherCranfield Universityen_UK
dc.rights© Cranfield University, 2015. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.en_UK
dc.subjectFracture mechanicsen_UK
dc.subjectDICen_UK
dc.subjectFEAen_UK
dc.subjectThermal stressen_UK
dc.subjectFatigueen_UK
dc.subject.lcshThermal stressen_UK
dc.titleInvestigation of the fracture behaviour of epoxy-based water ballasten_UK
dc.typeThesis or dissertationen_UK
dc.type.qualificationlevelDoctoralen_UK
dc.type.qualificationnamePhDen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Wu_T_2015.pdf
Size:
4.38 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

PhD and MSc by research theses (SATM)