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Real-time ultrasonic measurement of fatigue crack at bolt joints

Real-time ultrasonic measurement of fatigue crack at bolt joints
螺栓连接处疲劳裂纹的实时超声波测量
批准号:
21560077
负责人:
KATO Hiroshi
金额:
$3.16万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2011

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中文摘要
翻译
检测螺栓连接处的疲劳裂纹对保证螺栓的安全至关重要,但由于螺栓连接处的疲劳裂纹被螺栓头所覆盖,无法检测到。采用超声波检测技术对螺栓连接处的疲劳裂纹进行了检测。利用声表面波(SAW)技术在螺栓连接处检测到了一条长度小于100 μm的小裂纹,并对裂纹的长度和深度进行了评估。然后,在一个疲劳循环中检测随疲劳裂纹的裂纹打开/闭合行为的SAW强度变化。
英文摘要
It is vital to detect the fatigue crack appearing at the bolt joints for their safely, but it is unable to see the crack since it is covered by the bolt head. The present work was carried out to detect the fatigue crack appearing at the bolt joints by the ultrasonic measurement. A small crack less than 100 μm in length was detected at the bolt joints by using the surface acoustic wave (SAW), and also the length and the depth of the crack was evaluated. Then, the SAW intensity change following the crack opening/closing behavior of the fatigue crack was detected in one fatigue cycle.
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会议论文
ボルト締結部に発生する疲労き裂からの超音波反射波の疲労サイクル中の変化
疲劳循环过程中螺栓接头疲劳裂纹产生的超声波反射波的变化
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [加藤寛, ワグルサナット]
通讯作者: ワグルサナット
Real-time measurement of ultrasonic waves at bolted joints under fatigue testing
疲劳试验下螺栓接头超声波的实时测量
DOI: --
发表时间: 2011
期刊: Exp. Mech.
影响因子: --
作者: [S. Wagle, H. Kato]
通讯作者: H. Kato
DOI: --
发表时间: 2012
期刊: Mater. Trans.
影响因子: --
作者: [S. Wagle, H. Kato]
通讯作者: H. Kato
DOI: 10.1016/j.ndteint.2009.06.002
发表时间: 2009-12
期刊: Ndt & E International
影响因子: 4.2
作者: [S. Wagle;H. Kato]
通讯作者: S. Wagle;H. Kato
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