Cyclic stress-strain behavior of structural steel with yieldstrength up to 460 N/mm2

Yiyi Chen, Wei Sun, Tak Ming Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

This paper presents a constitutive model based on Ramberg-Osgood equation to describe the hysteresis material behavior of structural carbon steel with nominal yield strength between 235 to 420 N/mm2. The proposed model was calibrated against a series of cyclic material tests with strain amplitude varying from 0.5% to 2.0%. A simple relationship between the modular parameter K and the yield strength fywas proposed. The calibrated Ramberg-Osgood model revealed excellent agreement with the experimental results and captured further the experimental behavior of test specimens with nominal yield strength of 460 N/mm2. The proposed constitutive model was also adopted in conjunction with the combined kinematic/isotropic materials description in ABAQUS to mimic a full scale experimental test under cyclic loading. The numerical results revealed close agreement with the experimental observations.
Original languageEnglish
Pages (from-to)178-186
Number of pages9
JournalFrontiers of Structural and Civil Engineering
Volume8
Issue number2
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Keywords

  • constitutive model
  • finite element analysis
  • hysteresis curve
  • Ramberg-Osgood equation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture

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