Indentation-induced residual stresses in 45S5 bioglass and the stress effect on the material dissolution

Ding Li, Fuqian Yang, John Nychka

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Using microindentation technique, localized residual stresses were created in 45S5 bioglass. The indentation-induced residual stresses increased with increasing the indentation load for the same distance to the indent center; and the magnitude of average local residual stress decreased with the increase in the distance to the indent center. The stresses-assisted dissolution of the 45S5 bioglass was demonstrated by studying the growth behavior of radial cracks in phosphate buffer solution. A linear relation between the indentation load and the ratio of the change in crack length to the square root of time was established, which was supported by experimental results.

Original languageEnglish
Pages (from-to)4898-4908
Number of pages11
JournalEngineering Fracture Mechanics
Issue number17
StatePublished - Nov 2008

Bibliographical note

Funding Information:
This work is supported by the National Science Foundation through the Grant CMS-0508989. The authors are grateful for Ted Day at MO-SCI Corporation for providing the bioactive glass rods, material data, and materials processing information.


  • Bioactive glass
  • Dissolution
  • Indentation
  • Residual stress

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering


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