CAJ | 학술논문

通过实验研究了柱面-平面桥式接触模型的微动作用对疲劳断裂裂纹的影响。采用 ANSYS 建立了微动疲劳有限元模型，对该模型三步加载，在法向载荷和轴向载荷的作用下，计算分析了接触区域的应力场和应力幅，结果表明在微动接触区域存在应力集中，最大应力幅位置位于接触区域靠外侧处，依据应力幅得出该位置易于萌生裂纹并扩展断裂的结论，与实验结果对比，微动疲劳断裂裂纹位置较一致。
통과실험연구료주면-평면교식접촉모형적미동작용대피로단렬렬문적영향。채용 ANSYS 건립료미동피로유한원모형，대해모형삼보가재，재법향재하화축향재하적작용하，계산분석료접촉구역적응력장화응력폭，결과표명재미동접촉구역존재응력집중，최대응력폭위치위우접촉구역고외측처，의거응력폭득출해위치역우맹생렬문병확전단렬적결론，여실험결과대비，미동피로단렬렬문위치교일치。
The influence of fretting on fatigue fracture cracks was investigated by using a cylinder-plane contact model. A finite element fretting fa-tigue model was established by ANSYS. The stress intensity and stress intensity amplitude on contact surface have been calculated and analyzed under the action of normal load and axial load. The results showed that there existed stress concentration in the contact surface region, and the maximum am-plitude of stress intensity was located outside the contact surface region. This was close to the fracture crack location of fretting fatigue from the experi-mental results.