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Mode I and Mode II Stress Intensity Factors for a Surface Cracked in TiN/Steel Under Hertzian Rolling Contact
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 Title & Authors
Mode I and Mode II Stress Intensity Factors for a Surface Cracked in TiN/Steel Under Hertzian Rolling Contact
Kim, Byeong-Su; Kim, Wi-Dae;
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 Abstract
The two dimensional problem of a layered tribological system(TiN/Steel) containing a vertical surface breaking crack and subject to rolling contact is considered in this study. Using finite elements and stress extrapolation method, a series of preliminary models are developed. Preliminary results indicate that the extrapolation technique is valid to determine Modes I and II stress intensity factors for cracks. In the case of TiN/Steel medium, KI and KII were determined for variations in crack length, layer thickness, and load location. The results show that KII reaches maximum values when the contact is adjacent to the crack where Mode I stresses are compressive. KII values decrease with decreased crack length and significantly decrease for reduced layer thickness.
 Keywords
Stress Intensity Factor;Finite Element Analysis;Crack Propagation;Coating/Layer;Stress Method;Hertzian Contact;
 Language
Korean
 Cited by
1.
구름마찰 접촉하중시 Polyethylene Tibia 표면균열의 응력확대계 수와 복합전파거동에 관한 연구,김병수;문병영;

대한기계학회논문집A, 2003. vol.27. 12, pp.2019-2027 crossref(new window)
2.
구름접촉 하중시 코팅 표면에 발생한 균열면의 마찰을 고려한 모드II 전파거동에 관한 연구,문병영;김병수;

한국정밀공학회지, 2005. vol.22. 6, pp.159-167
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