Abstract
The dynamic fatigue behaviour of Al2O3 structural ceramics was studied by loading the stress on the specimen at a constant stress rate. The fracture strength of Al2O3 specimens under dynamic mode was constant up to a critical stress and then the lifetime abruptly decreased to zero as predicted theoretically for both the single cycle and the repeated loading. The material constant A was nearly constant and has no relation with loading mode and down speed for unnotched and notched specimen. The fracture strength obtained by theoretical calculation from the constants n and A was in good agreement with the measured value.
| Original language | English |
|---|---|
| Pages (from-to) | 61-66 |
| Number of pages | 6 |
| Journal | Journal of Ceramic Processing Research |
| Volume | 2 |
| Issue number | 2 |
| Publication status | Published - 2001 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
Cite this
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Lifetime prediction of structural ceramics by dynamic fatigue. / Lee, Kyu Hyoung; Lee, Hong Lim.
In: Journal of Ceramic Processing Research, Vol. 2, No. 2, 01.12.2001, p. 61-66.Research output: Contribution to journal › Article
TY - JOUR
T1 - Lifetime prediction of structural ceramics by dynamic fatigue
AU - Lee, Kyu Hyoung
AU - Lee, Hong Lim
PY - 2001/12/1
Y1 - 2001/12/1
N2 - The dynamic fatigue behaviour of Al2O3 structural ceramics was studied by loading the stress on the specimen at a constant stress rate. The fracture strength of Al2O3 specimens under dynamic mode was constant up to a critical stress and then the lifetime abruptly decreased to zero as predicted theoretically for both the single cycle and the repeated loading. The material constant A was nearly constant and has no relation with loading mode and down speed for unnotched and notched specimen. The fracture strength obtained by theoretical calculation from the constants n and A was in good agreement with the measured value.
AB - The dynamic fatigue behaviour of Al2O3 structural ceramics was studied by loading the stress on the specimen at a constant stress rate. The fracture strength of Al2O3 specimens under dynamic mode was constant up to a critical stress and then the lifetime abruptly decreased to zero as predicted theoretically for both the single cycle and the repeated loading. The material constant A was nearly constant and has no relation with loading mode and down speed for unnotched and notched specimen. The fracture strength obtained by theoretical calculation from the constants n and A was in good agreement with the measured value.
UR - http://www.scopus.com/inward/record.url?scp=0348238293&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0348238293&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0348238293
VL - 2
SP - 61
EP - 66
JO - Journal of Ceramic Processing Research
JF - Journal of Ceramic Processing Research
SN - 1229-9162
IS - 2
ER -