抄録
The ΔK value is calculated by using the local stress distribution at contact edge and 'intrinsic crack model'. Fretting fatigue initiation and limit is determined by theΔK_<eff, th> andΔK_<th> of the material. Fretting fatigue occur in compression stress field due to the surface pressure. However, ΔK_<th> in the compression stress field is unclear. Therefore Organize fretting fatigue data using this concept, to determine the mean stress effect of ΔK_<th>. By using this evaluation method, it was possible to estimate with an accuracy of ±20% for fretting fatigue limit.
