Effect of Shakedown on the Fatigue Limit of Ultrasonic Shot Peened Steel

Jinta Arakawa, Yoshiichirou Hayashi, Hiroyuki Akebono, Atsushi Sugeta

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

Abstract

We performed in-plane bending fatigue tests under controlled load conditions on ASTM 309 stainless steel specimens with surface compressive residual stress. The results provide a fatigue limit of 415 MPa, which agrees with the value of 404 MPa calculated based on a modified Goodman line considering shakedown. Therefore, the surface layer was clearly restricted by the internal bulk and was relieved under controlled displacement, after which shakedown occurred. Then, the fatigue limit of the metal material with surface compressive residual stress should be estimated by using a modified Goodman line considering shakedown to avoid unexpected fractures that could occur by following a modified Goodman line that does not consider shakedown.

Original languageEnglish
Title of host publicationAdvanced Surface Enhancement - Proceedings of the 1st International Conference on Advanced Surface Enhancement INCASE 2019—Research Towards Industrialisation
EditorsSho Itoh, Shashwat Shukla
PublisherSpringer Science and Business Media Deutschland GmbH
Pages69-75
Number of pages7
ISBN (Print)9789811500534
DOIs
Publication statusPublished - 2020
Externally publishedYes
Event1st International Conference on Advanced Surface Enhancement, INCASE 2019 - Singapore, Singapore
Duration: Sep 10 2019Sep 12 2019

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference1st International Conference on Advanced Surface Enhancement, INCASE 2019
Country/TerritorySingapore
CitySingapore
Period9/10/199/12/19

Keywords

  • Compressive residual stress
  • Modified Goodman line
  • Shakedown

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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