5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)


IMPROVEMENT OF RESIDUAL STRESS ON GUSSET WELDED JOINTS BY HEAT TREATMENT WITH INDUCTION HEATING

 

May Phyo AUNG 1*, Mikihito HIROHATA 2 and Yasuo KITANE 1

1 Department of Civil and Environmental Engineering, Nagoya University, Nagoya, Japan

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2 Department of Civil Engineering, Osaka University, Osaka, Japan

E-mail: hirohataThis email address is being protected from spambots. You need JavaScript enabled to view it.

DOI:10.18057/ICASS2018.P.137

ABSTRACT:

Residual stress induced by welding process is one of the dominant factors which deteriorate the fatigue performance of the welded steel structures. In order to investigate the improvement of the residual stress state in the welded steel joints, a series of experiment and numerical simulation were conducted on gusset welded joints by applying heat treatment with induction heating (IH). In this study, a new finding of a heating condition comprising target temperature, heating field size, and heating field position, which would alleviate or eliminate the welding-induced tensile residual stress near the weld toe, was developed. It was observed that heat treatment with IH could accurately control the target temperature. The proposed heating condition could improve the residual stress state by means of reducing the welding-induced tensile residual stresses to almost zero near the weld toe after superimposing the compressive residual stresses. Therefore, it is anticipated that the proposed heating condition could be applied for improvement of the fatigue performance of the gusset welded joints.

Keywords:

Residual stress; Welding; Heat treatment; Induction heating; Thermal elastic-plastic analysis; Fatigue performance

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IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM