Skip to main navigation Skip to search Skip to main content

Simulating ductile crack growth in carbon steel using an extended finite element method (XFEM)

  • University of Galway

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

Abstract

A novel methodology for simulation of crack growth in a 3D steel model is presented. This methodology is vital for the safe and full design of steel elements under harsh environment. The methodology, which is based on the extended finite element method (XFEM), neither requires the updating mesh over the course of the analysis, nor the priori definition of a crack length. Many other methods require the definition of crack and/or location of the crack to predict fracture. The methodology was validated against measurements from conventional static tests. The tests were carried out on the coupons of structural hollow tubes that are fabricated of 40×40×2.5SHS, 50×25×2.5RHS, 20×20×2.0SHS (mm) sections. Predictions of crack growth are used to study the behaviour of axially loaded steel to fracture. A major benefit is that the proposed method can be advanced for modelling fracture/fatigue of moderate to large structures to earthquakes.

Original languageEnglish
Title of host publicationIABSE Conference, Vancouver 2017
Subtitle of host publicationEngineering the Future - Report
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Pages2543-2550
Number of pages8
ISBN (Electronic)9783857481536
Publication statusPublished - 2017
Event39th IABSE Symposium in Vancouver 2017: Engineering the Future - Vancouver, Canada
Duration: 21 Sept 201723 Sept 2017

Publication series

NameIABSE Conference, Vancouver 2017: Engineering the Future - Report
Volume109

Conference

Conference39th IABSE Symposium in Vancouver 2017: Engineering the Future
Country/TerritoryCanada
CityVancouver
Period21/09/1723/09/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 11 - Sustainable Cities and Communities
    SDG 11 Sustainable Cities and Communities

Keywords

  • Ductile fracture
  • Extended finite element method
  • Steel braced frames
  • Steel coupons
  • Structural hollow sections

Fingerprint

Dive into the research topics of 'Simulating ductile crack growth in carbon steel using an extended finite element method (XFEM)'. Together they form a unique fingerprint.

Cite this