M&M材料力学カンファレンス
Online ISSN : 2424-2845
セッションID: OS0507
会議情報
OS0507 磁歪効果を利用した微小疲労き裂のき裂長さの測定(OS5-2 き裂進展・計測,OS-5 材料の疲労挙動と損傷評価1)
楠元 雄介黒島 義人
著者情報
会議録・要旨集 フリー

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抄録
Measurement of fatigue crack growth properties is difficult by relation of accuracy and device characteristic. Non-contact and the highly precise measurement are expected by the use of a magnetostriction effect to apply in this study. The small crack growth properties and crack length measurement by a magnetic field change with the magnetostriction effect that was one of a characteristic of magnetism of ferromagnetic substance was studied. Using a coil, a magnetic field change with magnetostriction effect was detected, and the waveform change of the output was inspected The experiment result was revealed that the small crack affects a magnetic field change by a magnetostriction effect and the crack length can measure by output of a coil.
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© 2011 一般社団法人 日本機械学会
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