5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


LOW CYCLE FATIGUE BEHAVIOR OF S550 HIGH-STRENGTH STEEL IN ARCTIC AREAS UNDER DIFFERENT STRAIN RATIOS

 

Liuyang. Feng 1 and Xudong. Qian1

1 Department of Civil and Environmental Engineering, Centre for Offshore Research and Engineering, National University of Singapore, Singapore 117576

E-mails: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.

DOI:10.18057/ICASS2018.P.019

ABSTRACT:

This article presents a series of low-cycle fatigue tests of S550 high-strength steel at a low temperature ( ) under different strain ratios. According to the experimental results, this study a) calibrates the cyclic plasticity properties including the cyclic stress-strain curve and nonlinear hardening properties, and b) investigates the effect of the mean stress caused by the non-zero strain ratios on the low-cycle fatigue life. In addition, combined with the existing low-cycle fatigue test results of S550 at the room temperature, this study analyzes the effect of low temperature on the low-cycle fatigue life. Finally, this work presents a close estimation of the fatigue life at the low temperature, based on the calibrated damage mechanics parameters.

Keywords:

Low-cycle fatigue; low temperature; energy-based fatigue model; cyclic plasticity; damage mechanics

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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