Abstract
The effects of various misalignments of circular notched bar (CNB) specimens on the fatigue crack propagation behavior of pipe grade polyethylene were investigated by finite element analyses. Generally, as the misalignments increased, the asymmetric crack growth accelerated with a consequent decrease in the time taken to reach the critical stress intensity factors. It was therefore confirmed that the lifetime to failure of CNB specimens varies noticeably when they are misaligned. Going by our study results, the fatigue crack growth behavior of CNB specimens, including their lifetime estimations, should be considered by addressing the effects of their misalignments.
| Original language | English |
|---|---|
| Pages (from-to) | 50-64 |
| Number of pages | 15 |
| Journal | Engineering Fracture Mechanics |
| Volume | 108 |
| DOIs | |
| Publication status | Published - 2013 Aug 1 |
Fingerprint
Keywords
- Circular notched bar specimen
- Fatigue crack growth
- Fatigue lifetime
- Geometric misalignment
- Stress intensity factor
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Science(all)
Cite this
Numerical analysis of asymmetric fatigue crack growth behaviors of circular notched bar specimen resulting from various geometric misalignments. / Kim, Ilhyun; Zhao, Yongjian; Choi, Byoung-Ho; Lee, Ji Mi; Lee, Ki Soo; Lee, Jeong Moo.
In: Engineering Fracture Mechanics, Vol. 108, 01.08.2013, p. 50-64.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Numerical analysis of asymmetric fatigue crack growth behaviors of circular notched bar specimen resulting from various geometric misalignments
AU - Kim, Ilhyun
AU - Zhao, Yongjian
AU - Choi, Byoung-Ho
AU - Lee, Ji Mi
AU - Lee, Ki Soo
AU - Lee, Jeong Moo
PY - 2013/8/1
Y1 - 2013/8/1
N2 - The effects of various misalignments of circular notched bar (CNB) specimens on the fatigue crack propagation behavior of pipe grade polyethylene were investigated by finite element analyses. Generally, as the misalignments increased, the asymmetric crack growth accelerated with a consequent decrease in the time taken to reach the critical stress intensity factors. It was therefore confirmed that the lifetime to failure of CNB specimens varies noticeably when they are misaligned. Going by our study results, the fatigue crack growth behavior of CNB specimens, including their lifetime estimations, should be considered by addressing the effects of their misalignments.
AB - The effects of various misalignments of circular notched bar (CNB) specimens on the fatigue crack propagation behavior of pipe grade polyethylene were investigated by finite element analyses. Generally, as the misalignments increased, the asymmetric crack growth accelerated with a consequent decrease in the time taken to reach the critical stress intensity factors. It was therefore confirmed that the lifetime to failure of CNB specimens varies noticeably when they are misaligned. Going by our study results, the fatigue crack growth behavior of CNB specimens, including their lifetime estimations, should be considered by addressing the effects of their misalignments.
KW - Circular notched bar specimen
KW - Fatigue crack growth
KW - Fatigue lifetime
KW - Geometric misalignment
KW - Stress intensity factor
UR - http://www.scopus.com/inward/record.url?scp=84881024532&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881024532&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2013.04.015
DO - 10.1016/j.engfracmech.2013.04.015
M3 - Article
AN - SCOPUS:84881024532
VL - 108
SP - 50
EP - 64
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
ER -