Abstract
The objective of this study is to investigate failure mechanisms of impact-damaged CFRP laminates subjected to compression fatigue. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were considerably larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage exhibited a similar tendency to those without impact. The impact-induced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact exhibited a more steeply declining S-N curve than those with impact damage. The delaminations in the impacted AS4/PEEK specimen did not reach the free edge before the fatigue fracture.
| Original language | English |
|---|---|
| Pages (from-to) | 2308-2314 |
| Number of pages | 7 |
| Journal | Composites Science and Technology |
| Volume | 69 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - Nov 1 2009 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Ceramics and Composites
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Compression fatigue failure of CFRP laminates with impact damage. / Uda, Nobuhide; Ono, Kousei; Kunoo, Kazuo.
In: Composites Science and Technology, Vol. 69, No. 14, 01.11.2009, p. 2308-2314.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Compression fatigue failure of CFRP laminates with impact damage
AU - Uda, Nobuhide
AU - Ono, Kousei
AU - Kunoo, Kazuo
PY - 2009/11/1
Y1 - 2009/11/1
N2 - The objective of this study is to investigate failure mechanisms of impact-damaged CFRP laminates subjected to compression fatigue. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were considerably larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage exhibited a similar tendency to those without impact. The impact-induced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact exhibited a more steeply declining S-N curve than those with impact damage. The delaminations in the impacted AS4/PEEK specimen did not reach the free edge before the fatigue fracture.
AB - The objective of this study is to investigate failure mechanisms of impact-damaged CFRP laminates subjected to compression fatigue. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were considerably larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage exhibited a similar tendency to those without impact. The impact-induced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact exhibited a more steeply declining S-N curve than those with impact damage. The delaminations in the impacted AS4/PEEK specimen did not reach the free edge before the fatigue fracture.
UR - http://www.scopus.com/inward/record.url?scp=70349432696&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349432696&partnerID=8YFLogxK
U2 - 10.1016/j.compscitech.2008.11.031
DO - 10.1016/j.compscitech.2008.11.031
M3 - Article
AN - SCOPUS:70349432696
VL - 69
SP - 2308
EP - 2314
JO - Composites Science and Technology
JF - Composites Science and Technology
SN - 0266-3538
IS - 14
ER -