Real-time ultrasonic measurement of fatigue crack at bolt joints
Real-time ultrasonic measurement of fatigue crack at bolt joints
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
中文摘要
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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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
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
Depth evaluation of fretting fatigue crack appearing at bolt joints of aluminum alloy plates by synchronized surface acoustic wave measurement
同步声表面波测量铝合金板螺栓接头微动疲劳裂纹深度评价
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
疲労き裂からの表面弾性波反射強さの疲労サイクル中の変化
疲劳循环过程中疲劳裂纹表面声波反射强度的变化
DOI:
--
发表时间:
2010
期刊:
非破壊検査
影响因子:
--
作者:
[ワグルサナット, 趙春慧, 蔡育霖, 加藤寛]
通讯作者:
加藤寛
共 13 条
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Acoustic visualization of cold flakes in aluminum alloy die-casts and evaluation of die-casts strength
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Collection of basic Egyptian socio-economic data and the interdisciplinary analysis based on them
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Development of a New Framework of Educational Evaluation : Situated Assessment for Collaborative Learning
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Change in ultrasonic waveform in fatigue damaging process and its application to damage evaluation
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Study of Periodontal Tissue Reconstruction using Various Growth Factors
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Development of New Bruxism Monitoring and Elucidation of Mechanism of Periodontal Destruction
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Influence of Atmosphere on Ultrasonic Bonding of Silicon to Metal
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SYNTHESIS OF AZULENE-EQUIVALENT HETEROCYCLES BY [4pi+6pi] CYCLOADDITIONS
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