巻号一覧
61 巻, 5 号
選択された号の論文の2件中1～2を表示しています
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手嶋 康暁, 後藤 雄治, 高橋 則雄2012 年 61 巻 5 号 p. 227-234
発行日: 2012/05/01
公開日: 2012/05/31
ジャーナル フリーMany bolts are used in automobiles or bridges. Since the loosing of the bolts may cause serious accidents, regular inspection is very important. In this paper, the slack inspection technique for high tension bolts, which detects the magnetic property of changing by bolting stress, was examined. The proposed bolt slack inspection technique was investigated using 3-D stress analysis and the nonlinear electromagnetic FEM (finite element method). The results showed that the non-destructive inspection of the slack of the high-tension bolts is possible by detecting the change of flux density in the proposed inspection probe.抄録全体を表示PDF形式でダウンロード (1977K) -
鄭 子揚, 阪上 隆英, 久保 司郎, 佐藤 大輔2012 年 61 巻 5 号 p. 235-238
発行日: 2012/05/01
公開日: 2012/05/31
ジャーナル フリーThis study aims to reduce infrared reflection noise, when infrared thermography is applied to non-destructive testing of delamination defects in building tile walls. A concrete block finished with highly reflective luster tiles was employed as the specimen for experimental study. Different types and sizes of artificial delamination defects were introduced in the specimen. It was found that, based on the difference in time variation waveforms of thermography data at the sound area, the delamination area and the sound area affected by reflection noise, the lock-in infrared thermography technique was able to extract only temperature change due to delamination defect.抄録全体を表示PDF形式でダウンロード (1982K)
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