Abstract
The present study includes low cycle fatigue behavior of graphite/PEEK composite materials. We conducted static tension tests to determine ultimate strength and low cycle fatigue tests using coupon specimens made from angle-ply laminates of which stacking sequence is [+30/-30]4s. Stress-strain relations are measured by an extensometer during fatigue testing for every fixed cycle in order to estimate a damage accumulation. The experimental results of stress-strain relations for every fixed cycle showed an accumulation of plastic strain, so-called ratchet type strain. The tests also indicated that fatigue failure occurred when ratchet strain reached static failure strain of about 3.9%. Moreover, we point out the difference between static failure mode and fatigue one by observing failure surface.
| Original language | English |
|---|---|
| Pages (from-to) | 125-130 |
| Number of pages | 6 |
| Journal | Theoretical and Applied Mechanics |
| Issue number | 46 |
| Publication status | Published - Dec 1 1997 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
Cite this
Low cycle fatigue behavior of symmetric angle-ply AS4/PEEK laminate. / Sakai, Masahiro; Kunoo, Kazuo; Uda, Nobuhide; Ono, Kousei; Nagayasu, Tadashi.
In: Theoretical and Applied Mechanics, No. 46, 01.12.1997, p. 125-130.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low cycle fatigue behavior of symmetric angle-ply AS4/PEEK laminate
AU - Sakai, Masahiro
AU - Kunoo, Kazuo
AU - Uda, Nobuhide
AU - Ono, Kousei
AU - Nagayasu, Tadashi
PY - 1997/12/1
Y1 - 1997/12/1
N2 - The present study includes low cycle fatigue behavior of graphite/PEEK composite materials. We conducted static tension tests to determine ultimate strength and low cycle fatigue tests using coupon specimens made from angle-ply laminates of which stacking sequence is [+30/-30]4s. Stress-strain relations are measured by an extensometer during fatigue testing for every fixed cycle in order to estimate a damage accumulation. The experimental results of stress-strain relations for every fixed cycle showed an accumulation of plastic strain, so-called ratchet type strain. The tests also indicated that fatigue failure occurred when ratchet strain reached static failure strain of about 3.9%. Moreover, we point out the difference between static failure mode and fatigue one by observing failure surface.
AB - The present study includes low cycle fatigue behavior of graphite/PEEK composite materials. We conducted static tension tests to determine ultimate strength and low cycle fatigue tests using coupon specimens made from angle-ply laminates of which stacking sequence is [+30/-30]4s. Stress-strain relations are measured by an extensometer during fatigue testing for every fixed cycle in order to estimate a damage accumulation. The experimental results of stress-strain relations for every fixed cycle showed an accumulation of plastic strain, so-called ratchet type strain. The tests also indicated that fatigue failure occurred when ratchet strain reached static failure strain of about 3.9%. Moreover, we point out the difference between static failure mode and fatigue one by observing failure surface.
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UR - http://www.scopus.com/inward/citedby.url?scp=11144347822&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:11144347822
SP - 125
EP - 130
JO - Theoretical and Applied Mechanics
JF - Theoretical and Applied Mechanics
SN - 0285-6042
IS - 46
ER -