Abstract
The change of fatigue damage behavior depending on an applied stress level in carbon fiber reinforced plastic (CFRP) laminates was evaluated quantitatively in this study. To evaluate damage growth, the energies released due to transverse crack propagation and delamination growth per unit length with consideration of transverse crack propagation were derived. Moreover, the transverse crack propagation and the delamination growth were evaluated using a modified Paris law that gives the relationship between the damage growth rate and the energy released due to damage growth. As a result, it was found that the growth of the transverse crack and the delamination could be evaluated with the unique Paris law constants, respectively. Finally, it was concluded that the change of the fatigue damage growth behavior was caused due to the difference of the growth rate of the transverse cracks and delamination at an applied stress level.
| Original language | English |
|---|---|
| Pages (from-to) | 781-787 |
| Number of pages | 7 |
| Journal | International Journal of Fatigue |
| Volume | 33 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2011 Jun |
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Keywords
- Delamination
- Fatigue crack growth
- High-cycle fatigue
- Polymer matrix composites
- Transverse crack
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
- Materials Science(all)
- Modelling and Simulation
Cite this
Quantitative evaluation of fatigue damage growth in CFRP laminates that changes due to applied stress level. / Hosoi, Atsushi; Takamura, Keigo; Sato, Narumichi; Kawada, Hiroyuki.
In: International Journal of Fatigue, Vol. 33, No. 6, 06.2011, p. 781-787.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantitative evaluation of fatigue damage growth in CFRP laminates that changes due to applied stress level
AU - Hosoi, Atsushi
AU - Takamura, Keigo
AU - Sato, Narumichi
AU - Kawada, Hiroyuki
PY - 2011/6
Y1 - 2011/6
N2 - The change of fatigue damage behavior depending on an applied stress level in carbon fiber reinforced plastic (CFRP) laminates was evaluated quantitatively in this study. To evaluate damage growth, the energies released due to transverse crack propagation and delamination growth per unit length with consideration of transverse crack propagation were derived. Moreover, the transverse crack propagation and the delamination growth were evaluated using a modified Paris law that gives the relationship between the damage growth rate and the energy released due to damage growth. As a result, it was found that the growth of the transverse crack and the delamination could be evaluated with the unique Paris law constants, respectively. Finally, it was concluded that the change of the fatigue damage growth behavior was caused due to the difference of the growth rate of the transverse cracks and delamination at an applied stress level.
AB - The change of fatigue damage behavior depending on an applied stress level in carbon fiber reinforced plastic (CFRP) laminates was evaluated quantitatively in this study. To evaluate damage growth, the energies released due to transverse crack propagation and delamination growth per unit length with consideration of transverse crack propagation were derived. Moreover, the transverse crack propagation and the delamination growth were evaluated using a modified Paris law that gives the relationship between the damage growth rate and the energy released due to damage growth. As a result, it was found that the growth of the transverse crack and the delamination could be evaluated with the unique Paris law constants, respectively. Finally, it was concluded that the change of the fatigue damage growth behavior was caused due to the difference of the growth rate of the transverse cracks and delamination at an applied stress level.
KW - Delamination
KW - Fatigue crack growth
KW - High-cycle fatigue
KW - Polymer matrix composites
KW - Transverse crack
UR - http://www.scopus.com/inward/record.url?scp=79951942587&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79951942587&partnerID=8YFLogxK
U2 - 10.1016/j.ijfatigue.2010.12.017
DO - 10.1016/j.ijfatigue.2010.12.017
M3 - Article
VL - 33
SP - 781
EP - 787
JO - International Journal of Fatigue
JF - International Journal of Fatigue
SN - 0142-1123
IS - 6
ER -