Michael De Leon, Mark Angelo Diaz, Hyung-Seop Shin
언어
영어(ENG)
URL
https://www.earticle.net/Article/A440933
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※ 학술발표대회집, 워크숍 자료집 중 4페이지 이내 논문은 '요약'만 제공되는 경우가 있으니, 구매 전에 간행물명, 페이지 수 확인 부탁 드립니다.
4,000원
원문정보
초록
영어
This study presents a comprehensive procedure for the low cycle fatigue test of ultrasonically welded (UW) coated conductor (CC) lap-joints. The entire process is examined in detail, from the robust fabrication of the UW REBCO CC joints to the reliability testing under a low number of repeated cycle fatigue conditions. A continuous Ic measurement system enables real-time monitoring of Ic variations throughout the fatigue tests. The study aims to provide a step-by-step procedure that involves joint fabrication, electromechanical property (EMP) tests under uniaxial tension for stress level determination, and subsequent low-cycle fatigue tests. The joints are fabricated using a hybrid method that combines UW with adding In-Sn soldering, achieving a flux-free hybrid welding approach (UW-HW flux-free). The selected conditions for the low cycle fatigue tests include a stress ratio of R=0.1 and a frequency of 0.02 Hz. The results reveal some insights into the fatigue behavior, irreversible changes, and cumulative damage in the CC joints.
목차
Abstract 1. INTRODUCTION 2. EXPERIMENTAL PROCEDURES 2.1. CC tape sample 2.2. Ultrasonic welding setup and electrical property measurement 3. EXPERIMENTAL RESULTS 3.1. Continuous Ic measurement results through tensiletest for EMP evaluation of CC lap-joints 3.2. Low-cycle fatigue test results at different stress levels 4. SUMMARY ACKNOWLEDGMENT REFERENCES
키워드
REBCO CC tapesultrasonic weldinglow cycle fatigueelectromechanical propertieshybrid weldingflux-free
저자
Michael De Leon [ Department of Mechanical Design Engineering, Andong National University, Andong, 36729, Korea ]
Mark Angelo Diaz [ Department of Mechanical Design Engineering, Andong National University, Andong, 36729, Korea ]
Hyung-Seop Shin [ Department of Mechanical Design Engineering, Andong National University, Andong, 36729, Korea ]
Corresponding Author