Abstract
This paper presents a study on fatigue crack growth modelling of thin walled tube aluminium alloy with circumferential crack under constant and variable amplitude loadings. Three fatigue crack growth models were investigated for this purpose, i.e. Walker, Forman and NASGRO. The results showed the differences in the fatigue crack growth simulation under both loading types, although, they have the same stress ratio for the maximum value. Subsequently, it was found that, different models gave different fatigue crack growth behaviour. In another case, many factors were identified towards the fatigue crack growth affection in structures. Hence, an initial crack length and the stress ratio are then studied and they showed a great influence in the life of the thin walled tube. From the detail analysis of this paper, the NASGRO model was found to be the most appropriate model for the variable amplitude loading. Therefore, this model can be suggested for the use in critical applications with respect to the fatigue crack growth studies for different structures under variable amplitude loadings.
| Original language | English |
|---|---|
| Pages (from-to) | 109-131 |
| Number of pages | 23 |
| Journal | SDHM Structural Durability and Health Monitoring |
| Volume | 5 |
| Issue number | 2 |
| Publication status | Published - 2009 |
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Keywords
- Constant amplitude
- Fatigue crack growth
- Initial crack
- Stress ratio
- Thin wall tube
- Variable amplitude
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
Cite this
Fatigue crack growth modelling of aluminium alloy under constant and variable amplitude loadings. / Abdullah, S.; Beden, S. M.; Ariffin, A. K.; Al-Asady, N. A.
In: SDHM Structural Durability and Health Monitoring, Vol. 5, No. 2, 2009, p. 109-131.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fatigue crack growth modelling of aluminium alloy under constant and variable amplitude loadings
AU - Abdullah, S.
AU - Beden, S. M.
AU - Ariffin, A. K.
AU - Al-Asady, N. A.
PY - 2009
Y1 - 2009
N2 - This paper presents a study on fatigue crack growth modelling of thin walled tube aluminium alloy with circumferential crack under constant and variable amplitude loadings. Three fatigue crack growth models were investigated for this purpose, i.e. Walker, Forman and NASGRO. The results showed the differences in the fatigue crack growth simulation under both loading types, although, they have the same stress ratio for the maximum value. Subsequently, it was found that, different models gave different fatigue crack growth behaviour. In another case, many factors were identified towards the fatigue crack growth affection in structures. Hence, an initial crack length and the stress ratio are then studied and they showed a great influence in the life of the thin walled tube. From the detail analysis of this paper, the NASGRO model was found to be the most appropriate model for the variable amplitude loading. Therefore, this model can be suggested for the use in critical applications with respect to the fatigue crack growth studies for different structures under variable amplitude loadings.
AB - This paper presents a study on fatigue crack growth modelling of thin walled tube aluminium alloy with circumferential crack under constant and variable amplitude loadings. Three fatigue crack growth models were investigated for this purpose, i.e. Walker, Forman and NASGRO. The results showed the differences in the fatigue crack growth simulation under both loading types, although, they have the same stress ratio for the maximum value. Subsequently, it was found that, different models gave different fatigue crack growth behaviour. In another case, many factors were identified towards the fatigue crack growth affection in structures. Hence, an initial crack length and the stress ratio are then studied and they showed a great influence in the life of the thin walled tube. From the detail analysis of this paper, the NASGRO model was found to be the most appropriate model for the variable amplitude loading. Therefore, this model can be suggested for the use in critical applications with respect to the fatigue crack growth studies for different structures under variable amplitude loadings.
KW - Constant amplitude
KW - Fatigue crack growth
KW - Initial crack
KW - Stress ratio
KW - Thin wall tube
KW - Variable amplitude
UR - http://www.scopus.com/inward/record.url?scp=71749115856&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=71749115856&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:71749115856
VL - 5
SP - 109
EP - 131
JO - SDHM Structural Durability and Health Monitoring
JF - SDHM Structural Durability and Health Monitoring
SN - 1930-2983
IS - 2
ER -