A Study on Using Hot-Rolled Steel Sheet for Ship Superstructure

Hisao Narimatsu, Masakazu Kuwada, Koji Gotoh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Application of the hot-rolled steel sheet for the members of superstructure, where the strength requirement of these parts in ships is not severe, is expected as a solution to reduce the hull construction cost. Because the hot-rolled steel sheet is applied after recoiling by cold working to return it to a flat plate, the material properties is deteriorated due to excessive plastic working and the residual stress induced by the plastic work might affect for the thermal cutting and welding. There is a possibility that the hot-rolled steel sheet has poor properties comparing with the flat rolled steels applied for hull parts where the structural integrities are required by the classification societies’ rules. The difference of properties between the hot-rolled steel sheet and the flat rolled steel are investigated in this research. Investigated items are mechanical properties, microstructures, initial residual stress distributions, hardness distributions, distortion after thermal cutting and laser-arc hybrid welding.

Original languageEnglish
Title of host publicationPractical Design of Ships and Other Floating Structures - Proceedings of the 14th International Symposium, PRADS 2019 - Volume 3
EditorsTetsuo Okada, Yasumi Kawamura, Katsuyuki Suzuki
PublisherSpringer Science and Business Media Deutschland GmbH
Pages243-257
Number of pages15
ISBN (Print)9789811546792
DOIs
Publication statusPublished - 2021
Event14th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2019 - Yokohama, Japan
Duration: Sep 22 2019Sep 26 2019

Publication series

NameLecture Notes in Civil Engineering
Volume65 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference14th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2019
CountryJapan
CityYokohama
Period9/22/199/26/19

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

Fingerprint Dive into the research topics of 'A Study on Using Hot-Rolled Steel Sheet for Ship Superstructure'. Together they form a unique fingerprint.

Cite this