Sealing failure and fretting fatigue behavior of fittings induced by pipeline vibration
Source abstract
Abstract
Abstract Pipeline fittings containing ferrules are used to connect sections of aircraft hydraulic pipelines. Therefore, their reliability and stability are essential. The purpose of this investigation is to better understand and analyze the sealing failure mechanism of pipeline fittings produced by pipeline vibration. Based on accelerated tests, the sealing failure mechanism and fatigue life of fittings are discussed. The influences of stress and pre-tightening torque on fretting fatigue behavior are also considered. Results from tests using an electromagnetic shaker apparatus indicate that sealing failure in pipeline fittings is caused by fretting fatigue of the front ferrule. Moreover, the decrease of pre-tightening torque will lead to more serious fretting fatigue.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical stress and fatigue analysis · Geotechnical Engineering and Underground Structures · Vibration and Dynamic Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
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