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Ultrasonic Fatigue Test for a High Strength Steel Plate
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 Title & Authors
Ultrasonic Fatigue Test for a High Strength Steel Plate
Yeom, Hyunho; Jung, Yongchan; Kim, Chayeong; Kang, Ki-Young; Lee, Moon Gu; Hong, Min-Sung; Jeon, Yongho;
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 Abstract
The demand of high cycle fatigue behavior on plate material is increasing because of its various applications. However, the high-cycle fatigue life data of the plate material is very rare compared to the rod material. Thus, in this study, a plate specimen is designed for the ultrasonic fatigue test because it is time efficient as compared to the conventional fatigue test. To apply the ultrasonic fatigue test, the specimen design is required to resonate at 20 kHz. Therefore, the dynamic elastic modulus was determined by measuring the resonance frequency with a piezoelectric element and laser doppler vibrometer (LDV). As a result, the plate specimen is designed and demonstrated using the ultrasonic fatigue testing machine. The ultrasonic fatigue test results were compared with the hydraulic fatigue test results.
 Keywords
Ultrasonic fatigue test;Hydraulic fatigue test;High strength steel;Plate specimen;Dynamic elastic modulus;S/N curve;
 Language
Korean
 Cited by
 References
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