CAJ | 학술논문

通过光学显微和电子显微检测技术相结合，对减速器管进行观察与分析。分析结果证实减速器管发生早期疲劳断裂的原因是：减速器管在固化之前，紧固套边缘部分区域碳布发生弯曲变形，碳布层之间发生分层，部分碳纤维发生断裂，导致固化后该区域层间结合强度不高，导致该区域减速器管的刚度、强度、抗疲劳性能均大幅度下降，试验过程中在疲劳载荷的作用下分层缺陷区域发生扩展，减速器管发生断裂。
통과광학현미화전자현미검측기술상결합，대감속기관진행관찰여분석。분석결과증실감속기관발생조기피로단렬적원인시：감속기관재고화지전，긴고투변연부분구역탄포발생만곡변형，탄포층지간발생분층，부분탄섬유발생단렬，도치고화후해구역층간결합강도불고，도치해구역감속기관적강도、강도、항피로성능균대폭도하강，시험과정중재피로재하적작용하분층결함구역발생확전，감속기관발생단렬。
The failure cause of a reducing unit pipe was analyzed by optical microscopy and scan electronic microscopy. It is found that the failure mode of the pipe is early fatigue fracture. Before solidification, the carbon cloth bended at the edge of the adapter sleeve, resulting in delamination of carbon cloth and fracture of part carbon fiber. As a result, the properties of this area declined significantly after solidification, resulting in fatigue facture under the effect of fatigue load.