材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
論文
熱応力解析理論に基づくショットピーニング面の残留応力深さ分布推定
岡野 俊之村田 一夫小栗 泰造田中 努川上 洋司佐藤 嘉洋
著者情報
ジャーナル フリー

2017 年 66 巻 7 号 p. 508-514

詳細
抄録

In the shot peening process, the residual stress on the shot-peened surface and its distribution under the surface are important evaluation items for the high value-added surface creation. In this paper, it was proposed that the residual stress distribution under the shot-peened surface for a thin plate was non-destructively estimated from the measured value of residual stress on the surface and that of the arc height, by applying the theory of linear thermal stress analysis for a thin plate. The analyzed residual stress profile showed good agreement with that of the experimental results obtained from the surface removal by electro-polishing. From the results of analysis, it was found that the depth of compressive residual stress (the depth which changes from the compressive stress to the tensile stress), the residual stress at the depth of the inherent strain and the residual stress on the opposite surface to the shot-peened surface characterizing the profile of residual stress distribution had a relationship with the ratio of a thickness of plate to an inherent strain depth.

著者関連情報
© 2017 日本材料学会
前の記事 次の記事
feedback
Top