Abstract
This paper deals with the strength analysis of ceramic laminates subjected to residual stress fields. In particular, alumina/mullite/zirconia ceramic materials have been taken into consideration. To this purpose, an energy-based approach and a micromechanical local approach have been used within the framework of the finite element method. The results obtained through the numerical analyses are consistent with the experimental ones, providing a correct estimation of the limit strength; furthermore, a lower bound on the external applied loads, below which no crack propagation occurs, can be identified. The local approach has led to a strength distribution that deviates from the typical Weibull distribution; this is owed to the residual stress field. Indeed, a stress-dependent Weibull modulus has been found.
| Original language | English |
|---|---|
| Pages (from-to) | 576-582 |
| Number of pages | 7 |
| Journal | Mechanics Research Communications |
| Volume | 35 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Dec 2008 |
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Keywords
- Ceramic laminates
- Finite element method
- Linear elastic fracture mechanics
- Weibull statistic
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
Cite this
Energy-based and local approaches to the strength analysis of ceramic laminates with thermal residual stresses through the finite element method. / Vena, P.; Bertarelli, E.; Gastaldi, D.; Contro, R.
In: Mechanics Research Communications, Vol. 35, No. 8, 12.2008, p. 576-582.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Energy-based and local approaches to the strength analysis of ceramic laminates with thermal residual stresses through the finite element method
AU - Vena, P.
AU - Bertarelli, E.
AU - Gastaldi, D.
AU - Contro, R.
PY - 2008/12
Y1 - 2008/12
N2 - This paper deals with the strength analysis of ceramic laminates subjected to residual stress fields. In particular, alumina/mullite/zirconia ceramic materials have been taken into consideration. To this purpose, an energy-based approach and a micromechanical local approach have been used within the framework of the finite element method. The results obtained through the numerical analyses are consistent with the experimental ones, providing a correct estimation of the limit strength; furthermore, a lower bound on the external applied loads, below which no crack propagation occurs, can be identified. The local approach has led to a strength distribution that deviates from the typical Weibull distribution; this is owed to the residual stress field. Indeed, a stress-dependent Weibull modulus has been found.
AB - This paper deals with the strength analysis of ceramic laminates subjected to residual stress fields. In particular, alumina/mullite/zirconia ceramic materials have been taken into consideration. To this purpose, an energy-based approach and a micromechanical local approach have been used within the framework of the finite element method. The results obtained through the numerical analyses are consistent with the experimental ones, providing a correct estimation of the limit strength; furthermore, a lower bound on the external applied loads, below which no crack propagation occurs, can be identified. The local approach has led to a strength distribution that deviates from the typical Weibull distribution; this is owed to the residual stress field. Indeed, a stress-dependent Weibull modulus has been found.
KW - Ceramic laminates
KW - Finite element method
KW - Linear elastic fracture mechanics
KW - Weibull statistic
UR - http://www.scopus.com/inward/record.url?scp=51749103965&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51749103965&partnerID=8YFLogxK
U2 - 10.1016/j.mechrescom.2008.04.003
DO - 10.1016/j.mechrescom.2008.04.003
M3 - Article
AN - SCOPUS:51749103965
VL - 35
SP - 576
EP - 582
JO - Mechanics Research Communications
JF - Mechanics Research Communications
SN - 0093-6413
IS - 8
ER -