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논문 기본정보
ABAQUS 서브루틴을 이용한 레일 보수용접 잔류응력 해석
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | 한국정밀공학회지 = Journal of the Korean Society of Precision Engineering |
| ISSN | 1225-9071, |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | 김동욱,전현규,이상환,장윤석 |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2016-01-01 |
| 초록 | Reduction of welding residual stress is very important in the railway industry, but calculating its distribution in structures is difficult because welding residual stress formation is influenced by various parameters. In this study, we developed a finite element model for simulating the repair welding process to recover a surface damaged rail, and conducted a series of parametric studies while varying the cooling rate and the duration of post weld heat treatment (PWHT) to find the best conditions for reducing welding residual stress level. This paper presents a three-dimensional model of the repair welding process considering the phase transformation effect implemented by the ABAQUS user subroutine, and the results of parametric studies with various cooling rates and PWHT durations. We found that heat treatment significantly reduced the residual stress on the upper rail by about 170 MPa. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201621650896064 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
|---|---|
| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | 육성용접,철도레일,잔류응력,상변태,Repair welding,Railway rail,Residual stress,Phase transformation |