Abstract
An analytical model of the stress field caused by sliding microindentation of brittle materials is developed. The complete stress field is treated as the superposition of applied normal and tangential forces with a sliding blister approximation of the localized inelastic deformation occurring just underneath the indenter. It is shown that lateral cracking is produced by the sliding blister stress field and that median cracking is caused by the applied contact forces. The model is combined with experimental volume change measurements to show that the relative magnitude of tensile stresses governing lateral crack and median crack growth varies with the magnitude of the applied load. This prediction is consistent with the different regimes of cracking observed under a sliding pointed indenter in soda-lime glass and other brittle solids.
| Original language | English (US) |
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| Title of host publication | NIST Special Publication |
| Publisher | Publ by Natl Inst of Standards & Technology |
| Pages | 71-81 |
| Number of pages | 11 |
| Edition | 847 |
| State | Published - Jun 1993 |
| Externally published | Yes |
| Event | Proceedings of the International Conference on Machining of Advanced Materials - Gaithersburg, MD, USA Duration: Jul 20 1993 → Jul 22 1993 |
Other
| Other | Proceedings of the International Conference on Machining of Advanced Materials |
|---|---|
| City | Gaithersburg, MD, USA |
| Period | 7/20/93 → 7/22/93 |
ASJC Scopus subject areas
- Engineering(all)