溶接学会論文集
Online ISSN : 2434-8252
Print ISSN : 0288-4771
超音波探傷の傾斜底面ステップおよび直線溝による反射の数値実験
内田 正則春海 佳三郎
著者情報
ジャーナル フリー

1995 年 13 巻 1 号 p. 91-98

詳細
抄録

Takahashi performed experiments on the reflection of the transverse waves by an inclined step on a free surface, and he also calculated the same cases using the sound wave theory proposed by Werneyer, and found large gap between the experimental results and calculated values. He also performed experiments on the reflection of the transverse waves by an inclined slit on a free surface having 1 mm height. In order to verify the elastic wave theory, numerical experiments of the same cases of reflections for the transverse waves have been executed. The incident angle of the transverse wave is given by 45 degree, and the inclination angles of steps or cracks are taken from 0 degree to 50 degree for every 10 degree. The results are found to agree with the experimental results within 2 or 3 dB error. The visualization of reflected waves has been realized using vectors diagrams. As the consequence, Physical mechanisms of new phenomena of reflections, such as head waves or corner waves, have been clarified in details.

著者関連情報
© 一般社団法人 溶接学会
前の記事 次の記事
feedback
Top