High cycle fatigue in aircraft gas turbines - An industry perspective
High cycle fatigue in aircraft gas turbines - An industry perspective
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DOI：
10.1007/bf00012667
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发表时间：
1996-01-01
影响因子：
2.5
通讯作者：
Cowles, BA
中科院分区：
文献类型：
--
作者：
Cowles, BA
现代军用飞机燃气涡轮机发动机中部件失效的最大单一原因是高周疲劳（HCF），超过归因于低周疲劳、腐蚀、过应力、制造工艺、机械损伤和材料的数量。HCF问题是一个普遍的问题，影响到所有发动机部分和广泛的材料。除了对发动机部件可靠性的影响外，HCF问题还通过现场检查和维护行动以及降低的战备可靠性造成重大的经济影响。本文提出了一个概述，从行业的角度来看，目前，高度实证的方法来评估HCF的能力。还描述了影响发动机HCF材料性能的必须解决的复杂因素。未来的方向，将改善目前的方法进行了概述，强调纳入断裂力学。必须解决的技术挑战，以成功地实现使用断裂力学的HCF的描述，和建议的研究领域。
The largest single cause of component failures in modem military aircraft gas turbine engines is high cycle fatigue (HCF), exceeding the number attributed to low cycle fatigue, corrosion, overstress, manufacturing processes, mechanical damage, and materials. The HCF problem is a pervasive one, affecting all engine sections and a wide range of materials. In addition to the impact on engine component reliability, HCF problems cause significant economic impacts through field inspection and maintenance actions, and reduced readiness reliability. This paper presents an overview, from an industry perspective, of the current, highly empirical approach for assessing the HCF capability. Complicating factors that must be addressed which affect engine HCF material capability are also described. Future directions which would improve the current approach are outlined, emphasizing incorporation of fracture mechanics. Technical challenges which must be addressed to successfully implement use of fracture mechanics for HCF are described, and areas of research recommended.