Crack detection with strain gages and the body force method

Hiroshi Noguchi, Toyomitsu Harada

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

The development of a stress estimation method based on the concept of 'Pseudo-3-D problem'. According to this method, a surface of a notched region of 3-D stress field, is treated as a pseudo 3-D plate without thickness. The method is applied to detect a crack near a notch of 3-D structures. The results of elastic finite element method (FEM) analysis is used to bring correct boundary conditions in stress estimation on the effect of strain gage's noise. The maximum stress is not generated at the notch edge but at the crack tip in a notched plate with a crack. Antiplane bending occurs on the plane containing the hidden crack due to the nonconformity of the centers in the tension and the ligaments. It is found that the forces and the Poisson's effect generate secondary deformation of the arrow that causes secondary compressive stress.

元の言語英語
ページ(範囲)765-769
ページ数5
ジャーナルStructural Engineering and Mechanics
24
発行部数6
DOI
出版物ステータス出版済み - 12 20 2006

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Crack detection
Strain gages
Cracks
Ligaments
Compressive stress
Crack tips
Boundary conditions
Finite element method

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Crack detection with strain gages and the body force method. / Noguchi, Hiroshi; Harada, Toyomitsu.

:: Structural Engineering and Mechanics, 巻 24, 番号 6, 20.12.2006, p. 765-769.

研究成果: ジャーナルへの寄稿記事

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