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TECHNICAL PAPERS

On the Improvement of Calibration Coefficients for Hole-Drilling Integral Method: Part I—Analysis of Calibration Coefficients Obtained by a 3-D FEM Model

[+] Author and Article Information
Jong-Ning Aoh, Chung-Sheng Wei

Department of Mechanical Engineering, National Chung Cheng University, 160, San-Hsing, Ming-Hsiung, Chia-Yi, 621, Taiwan, R.O.C.

J. Eng. Mater. Technol 124(2), 250-258 (Mar 26, 2002) (9 pages) doi:10.1115/1.1416685 History: Received September 07, 2000; Revised April 25, 2001; Online March 26, 2002
Copyright © 2002 by ASME
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References

Figures

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Schematic illustration of dimensionless stress depth H and dimensionless hole depth h
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A three-dimensional model used to determine calibration coefficients āi,j and b̄i,j
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Loading conditions on the hole boundary and the position of gage elements in the three dimensional model
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Change of Ai,i versus dimensionless thickness t/Rm at R/Rm=0.3
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Deformation of elements on thin plate (t/Rm=0.9,R/Rm=0.3, the displacement of each node was multiplied by a factor of 2000)
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Deformation of elements on thick plate (t/Rm=2,R/Rm=0.3, the displacement of each node was multiplied by a factor of 2000)
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Change of Bi,i versus dimensionless thickness t/Rm at R/Rm=0.3
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Change of Ai,i versus dimensionless thickness t/Rm at R/Rm=0.4
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Change of Bi,i versus dimensionless thickness t/Rm at R/Rm=0.4
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Difference between calibration coefficients āi,j using the 3-D model in this work and the 2-D model of Schajer
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Comparison between coefficients Ai and Bi using the 3-D model in this work and the experimental work by Rendler 8 modified by a correction factor
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Comparison between coefficients Ai and Bi using the 3-D model in this work and the experimental work by Bathgate 9 modified by a correction factor
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Comparison between coefficients Ai and Bi using the 3-D model in this work and the experimental work by Kelsey 10 modified by a correction factor
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Difference between calibration coefficients Ai,j using the 3-D model in this work and the 2-D model of Schajer
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Difference between calibration coefficients Bi,j using the 3-D model in this work and the 2-D model of Schajer

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