Abstract
A study on the evaluation of fatigue degradation in SUS316L material using nonlinear ultrasonics was reported. The nonlinearity of ultrasonic wave was estimated by relative nonlinear parameter defined by the ratio of fundamental and second-harmonic wave amplitude. A measurement system with contact transducers was constructed, which has a capability of reliable measurement by keeping measurement condition in consistent and reducing extra harmonics generated in the measurement system. Two types of SUS316L specimen were tested: one was a rotating bar fatigue specimen and another was a tensile fatigue specimen. Fatigue condition was high cycle fatigue. The former has cylindrical shape and was used to observe the change of nonlinear parameter while the fatigue accumulation in a specimen. The latter is a plate-shaped specimen and was used to confirm the change of nonlinear parameter in the spot where the stress concentration was occurred. Measured nonlinear parameter showed strong correlation with damage level of both fatigue tests.
| Original language | English |
|---|---|
| Title of host publication | Review of Progress in Quantitative Nondestructive Evaluation |
| Pages | 1433-1438 |
| Number of pages | 6 |
| DOIs | |
| State | Published - 2010 Apr 1 |
| Event | 36th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE - Kingston, RI, United States Duration: 2009 Jul 26 → 2009 Jul 31 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1211 |
| ISSN (Print) | 0094-243X |
| ISSN (Electronic) | 1551-7616 |
Other
| Other | 36th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE |
|---|---|
| Country | United States |
| City | Kingston, RI |
| Period | 09/07/26 → 09/07/31 |
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Keywords
- Nonlinearity parameter
- Rotary bending fatigue
- SUS316L
- Tensile fatigue
- Ultrasonic wave
Cite this
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Evaluation of fatigue degradation using nonlinear ultrasonics. / Choi, Ikhwang; Lee, Taehun; Jhang, Kyung Young.
Review of Progress in Quantitative Nondestructive Evaluation. 2010. p. 1433-1438 (AIP Conference Proceedings; Vol. 1211).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Evaluation of fatigue degradation using nonlinear ultrasonics
AU - Choi, Ikhwang
AU - Lee, Taehun
AU - Jhang, Kyung Young
PY - 2010/4/1
Y1 - 2010/4/1
N2 - A study on the evaluation of fatigue degradation in SUS316L material using nonlinear ultrasonics was reported. The nonlinearity of ultrasonic wave was estimated by relative nonlinear parameter defined by the ratio of fundamental and second-harmonic wave amplitude. A measurement system with contact transducers was constructed, which has a capability of reliable measurement by keeping measurement condition in consistent and reducing extra harmonics generated in the measurement system. Two types of SUS316L specimen were tested: one was a rotating bar fatigue specimen and another was a tensile fatigue specimen. Fatigue condition was high cycle fatigue. The former has cylindrical shape and was used to observe the change of nonlinear parameter while the fatigue accumulation in a specimen. The latter is a plate-shaped specimen and was used to confirm the change of nonlinear parameter in the spot where the stress concentration was occurred. Measured nonlinear parameter showed strong correlation with damage level of both fatigue tests.
AB - A study on the evaluation of fatigue degradation in SUS316L material using nonlinear ultrasonics was reported. The nonlinearity of ultrasonic wave was estimated by relative nonlinear parameter defined by the ratio of fundamental and second-harmonic wave amplitude. A measurement system with contact transducers was constructed, which has a capability of reliable measurement by keeping measurement condition in consistent and reducing extra harmonics generated in the measurement system. Two types of SUS316L specimen were tested: one was a rotating bar fatigue specimen and another was a tensile fatigue specimen. Fatigue condition was high cycle fatigue. The former has cylindrical shape and was used to observe the change of nonlinear parameter while the fatigue accumulation in a specimen. The latter is a plate-shaped specimen and was used to confirm the change of nonlinear parameter in the spot where the stress concentration was occurred. Measured nonlinear parameter showed strong correlation with damage level of both fatigue tests.
KW - Nonlinearity parameter
KW - Rotary bending fatigue
KW - SUS316L
KW - Tensile fatigue
KW - Ultrasonic wave
UR - http://www.scopus.com/inward/record.url?scp=77950136890&partnerID=8YFLogxK
U2 - 10.1063/1.3362236
DO - 10.1063/1.3362236
M3 - Conference contribution
AN - SCOPUS:77950136890
SN - 9780735407480
T3 - AIP Conference Proceedings
SP - 1433
EP - 1438
BT - Review of Progress in Quantitative Nondestructive Evaluation
ER -