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구조용 금속의 초고주기피로 거동에 대한 연구 동향Reviews on Very High Cycle Fatigue Behaviors of Structural Metals
- Other Titles
- Reviews on Very High Cycle Fatigue Behaviors of Structural Metals
- Issue Date
- Mar-2014
- Publisher
- 한국자동차공학회
- Keywords
- Very high cycle fatigue(초고주기피로); S-N curves(응력-수명 곡선); Fatigue strength(피로강도); Fatigue fracture(피로파괴); Failure mechanism(파손 메커니즘)
- Citation
- 한국자동차공학회 논문집, v.22, no.2, pp.134 - 140
- Indexed
- KCI
- Journal Title
- 한국자동차공학회 논문집
- Volume
- 22
- Number
- 2
- Start Page
- 134
- End Page
- 140
- ISSN
- 1225-6382
- Abstract
- The paper presents an overview of the present state of study on the fatigue behaviors at very high number ofcycles (Nf > 107). A classification of materials with typical S-N curves and influencing factors such as notches, residualstresses, temperatures, corrosion environments and stress ratios are given. The microstructural inhomogeneities ofmaterials and micro-cracks played an important roles in very high cycle fatigue behaviors. The failure mechanisms forthe fatigue design of materials and components are mentioned.
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