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首页> 外文期刊>International journal of structural integrity >Determining the feasibility of identifying creep rupture of stainless steel cladding tubes on-line using acoustic emission technique
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Determining the feasibility of identifying creep rupture of stainless steel cladding tubes on-line using acoustic emission technique

机译：确定使用声发射技术在线识别不锈钢包层管蠕变破裂的可行性

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Purpose - The purpose of this paper is to determine the feasibility of identifying the creep rupture of reactor cladding tubes using acoustic emission technique (AET). Design/methodology/approach - The creep rupture tests were carried out by pressuring stainless steel capsules upto 6 MPa at room temperature and then heating continuously in a furnace upto rupture. The acoustic emission (AE) signals generated during the creep rupture tests were recorded using a 150 kHz resonant sensor and analysed using AE Win software. Findings - When rupture occurs in the pressurized capsule tube representing the cladding tube, AE sensor attached to a waveguide captures the mechanical disturbance from the capsule and these data can be advantageously used to identify the creep rupture event of the cladding tube. Practical implications - The creep rupture data of fuel clad tube is very important in design and for smooth operation of nuclear reactors without fuel pin failure in reactors. Originality/value - AE is an advanced non-destructive evaluation technique. This technique has been successfully applied for on-line monitoring of creep rupture of the reactor cladding tube which otherwise could be detected by thermocouple readings only.
机译：目的-本文的目的是确定使用声发射技术（AET）识别反应堆壁管蠕变破裂的可行性。设计/方法/方法-蠕变断裂试验是通过在室温下将不锈钢胶囊加压至6 MPa，然后在炉中连续加热直至断裂而进行的。使用150 kHz共振传感器记录蠕变断裂测试期间产生的声发射（AE）信号，并使用AE Win软件进行分析。结果-当在代表包层管的加压胶囊管中发生破裂时，连接到波导的AE传感器捕获来自囊的机械干扰，这些数据可有利地用于识别包层管的蠕变破裂事件。实际意义-燃料包覆管的蠕变破裂数据在设计和确保核反应堆的平稳运行而不引起反应堆燃料销故障的过程中非常重要。原创性/价值-AE是一种先进的无损评估技术。该技术已成功应用于在线监测反应堆覆层蠕变断裂，否则只能通过热电偶读数来检测。

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