Numerical study of enhancement of fatigue crack propagation life by grain refinement

Koji Gotoh, Keisuke Harada

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

Abstract

The possibility of grain size refinement treatment using high energy concentrated heating methods for the enhancement of fatigue life are investigated by applying numerical simulation of fatigue crack propagation. The strip yield model in order to represent fatigue crack opening / closing behaviour and improved effective stress intensity factor range (ΔK RPG) are implemented into the numerical simulation model. The effect of grain refinement for the enhancement of fatigue crack propagation is confirmed in this study.

Original languageEnglish
Title of host publicationThe Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
Pages435-439
Number of pages5
Publication statusPublished - Dec 1 2009
Event19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE - Osaka, Japan
Duration: Jun 21 2009Jun 26 2009

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
CountryJapan
CityOsaka
Period6/21/096/26/09

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All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Gotoh, K., & Harada, K. (2009). Numerical study of enhancement of fatigue crack propagation life by grain refinement. In The Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE (pp. 435-439). (Proceedings of the International Offshore and Polar Engineering Conference).