Effect of occasional shear loading on fatigue crack growthin 7075 aluminum alloy

M. Makizaki, Hisao Matsunaga, K. Yanase, M. Endo

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

1 Citation (Scopus)

Abstract

Effect of occasional mode II loading on subsequent mode I fatigue crack growth behavior was investigated by using a thin-walled tube made of 7075-T6511 aluminum alloy.Careful observation of crack growth behavior revealed that the occasional mode II loading has two contradictory effects for crack growth behavior. The first is a retardation effect that is associated with the plastic deformation near crack tip. However, this effect is negligibly small for the crack growth life as a whole. The second is an acceleration effect caused by mode II fatigue crack growth itself. It was found that under relatively high ΔK level, the mode II crack growth was about an order magnitude faster than mode I crack growth. Therefore, to properly evaluate the effect of occasional shear loading in the 7075 alloy, the mode II crack growth should be taken into account.

Original languageEnglish
Title of host publicationAdvanced Materials Science and Technology
Pages264-267
Number of pages4
DOIs
Publication statusPublished - Apr 10 2013
Event8th International Forum on Advanced Materials Science and Technology, IFAMST 2012 - Fukuoka City, Japan
Duration: Aug 1 2012Aug 4 2012

Publication series

NameMaterials Science Forum
Volume750
ISSN (Print)0255-5476

Other

Other8th International Forum on Advanced Materials Science and Technology, IFAMST 2012
CountryJapan
CityFukuoka City
Period8/1/128/4/12

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Effect of occasional shear loading on fatigue crack growthin 7075 aluminum alloy'. Together they form a unique fingerprint.

  • Cite this

    Makizaki, M., Matsunaga, H., Yanase, K., & Endo, M. (2013). Effect of occasional shear loading on fatigue crack growthin 7075 aluminum alloy. In Advanced Materials Science and Technology (pp. 264-267). (Materials Science Forum; Vol. 750). https://doi.org/10.4028/www.scientific.net/MSF.750.264