SM45C 환봉 용접재의 피로거동에 관한 실험적 연구An Experimental Study on Fatigue Behavior in Welded SM45C Steel Rod
- Other Titles
- An Experimental Study on Fatigue Behavior in Welded SM45C Steel Rod
- Authors
- 이용복; 정재근
- Issue Date
- 2008
- Publisher
- 대한기계학회
- Keywords
- Fatigue Strength(피로강도); Infinite Life(무한수명); Deposited Metal Zone(용착금속부); Heat Affected Zone(열영향부); Base Metal Zone(모재부); Compressive Residual Stress(압축잔류응력); Drawing Process(인발공정); Alternating Stress(반복응력); Fatigue Strength(피로강도); Infinite Life(무한수명); Deposited Metal Zone(용착금속부); Heat Affected Zone(열영향부); Base Metal Zone(모재부); Compressive Residual Stress(압축잔류응력); Drawing Process(인발공정); Alternating Stress(반복응력)
- Citation
- 대한기계학회논문집 A, v.32, no.6, pp.519 - 525
- Journal Title
- 대한기계학회논문집 A
- Volume
- 32
- Number
- 6
- Start Page
- 519
- End Page
- 525
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/23194
- ISSN
- 1226-4873
- Abstract
- For this study, SM45C steel rods using generally for power transmission shafts and machine components was selected and welded by butt-GMAW method. And then it was studied about estimation of fatigue strength and the region of infinite life by Haigh diagram using Goodman's equation. Fatigue strength in weld zone presents highly in order of the boundary between deposited metal zone and heat affected zone, deposited metal zone, heat affected zone. This result agrees with distribution of hardness in weld zone. Fatigue strength in base metal zone presents highly compared with weld zone in low cycles between 10⁴ cycles and 106cycles, but it presents the lowest fatigue strength on the order of heat affected zone in the vicinity of 106cycles. It is the result that the first high compressive residual stress distributed by drawing process of the steel rods is released and the base metal is softened by alternating stresses. The region of infinite life by Haigh diagram presents highly in order of the boundary between deposited metal zone and heat affected zone, deposited metal zone, heat affected zone. From this results, it is demanded that the stress for safety design of machine components using SM45C butt-welded steel rods must be selected in the region of the lowest infinite life of heat affected zone
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Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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