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首页> 外国专利> CRACK-SHAPED FATIGUE DETECTION ELEMENT AND ITS MANUFACTURING METHOD AND DAMAGE DEGREE ESTIMATION METHOD BY USING CRACK-SHAPED FATIGUE DETECTION ELEMENT

CRACK-SHAPED FATIGUE DETECTION ELEMENT AND ITS MANUFACTURING METHOD AND DAMAGE DEGREE ESTIMATION METHOD BY USING CRACK-SHAPED FATIGUE DETECTION ELEMENT

机译：裂纹形疲劳检测元件及其制造方法和损伤程度的估计方法

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摘要

PROBLEM TO BE SOLVED: To provide a fatigue detection element capable of improving the degree of freedom on selection of a measuring position by miniaturizing the formation, and measuring the degree of fatigue damage to a member with high sensitivity and high accuracy. SOLUTION: In this crack-type fatigue detection element, both ends in the longitudinal direction of a foil-shaped rupture piece on which a slit extending from one side part in the width direction perpendicular to the longitudinal direction toward the other side part in the width direction is formed on the center part between both ends in the longitudinal direction, are stuck on one surface of a foil-shaped substrate, and the other surface of the substrate is fixed on the member to be detected, and the degree of fatigue damage to the member to be detected is detected by the crack development length developed from the slit. In the element, an intermediate part including the center part where the slit of the rupture piece is formed is formed thinner than both end parts in the longitudinal direction over the whole length in the width direction.
机译：解决的问题：提供一种疲劳检测元件，该疲劳检测元件能够通过使构造最小化来提高选择测量位置的自由度，并且能够以高灵敏度和高精度来测量对构件的疲劳损伤程度。解决方案：在该裂纹型疲劳检测元件中，箔状断裂片的纵向两端均从垂直于长度方向的宽度方向上的一侧向宽度方向上的另一侧延伸。方向形成在纵向两端之间的中央部分，并粘贴在箔状基板的一个表面上，基板的另一表面固定在要检测的部件上，疲劳损伤的程度通过从狭缝形成的裂纹扩展长度来检测被检测部件。在该元件中，在宽度方向的整个长度上，包括形成有破裂片的狭缝的中央部的中间部形成为比长度方向的两端部薄。

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