Journal ArticleDOI
A new calculation procedure for non-uniform residual stress analysis by the hole-drilling method
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TLDR
In this paper, the spline method is proposed to calculate the residual stress field in the presence of non-uniform residual stress, which is characterized by some simplifications that lead to approximate results.Abstract:
The hole-drilling method is one of the most used semi-destructive techniques for residual stress analysis in mechanical parts. In the presence of non-uniform residual stress, the stress field can be determined from the measured relaxed strains using several calculation methods, but the most used one is the so-called integral method. This method is characterized by some simplifications that lead to approximate results, especially when the residual stress varies abruptly. In this paper a new calculation procedure called the spline methods is proposed, which allows these drawbacks to be overcome. Numerical simulations and an experimental test have corroborated the best performance of the proposed technique with respect to the calculation procedures used at present.read more
Citations
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A review of residual stress measurement methods - a guide to technique selection.
TL;DR: The results of a UK industrial survey of current interests and expertise in residual stress measurement are presented, together with guidelines on technique selection and some advice on quantifying the measurement uncertainty and accuracy.
Journal ArticleDOI
Uncertainty, Model Error, and Order Selection for Series-Expanded, Residual-Stress Inverse Solutions
Michael B. Prime,Michael R. Hill +1 more
TL;DR: In this paper, the authors present a comprehensive uncertainty analysis and order selection methodology, with detailed development for the slitting method, and demonstrate that an optimal order for the series expansion can usually be chosen by minimizing the estimated uncertainty in the calculated stresses.
Journal ArticleDOI
Optimal calculation steps for the evaluation of residual stress by the incremental hole-drilling method
TL;DR: In this article, the authors analyzed the influence of the strain measurement error on the computed residual stresses carried out in the integral method and showed that, given both maximum hole depth and number of total steps, the error sensitivity depends on the particular depth increment distribution used.
Journal ArticleDOI
Residual Stress Analysis of Orthotropic Materials by the Through-hole Drilling Method
TL;DR: In this article, a through-hole drilling method for the residual stress analysis in orthotropic materials is proposed, based on the relationship between the relaxed strains measured by a rectangular strain gauge rosette and the Cartesian components of the unknown residual stresses.
Journal ArticleDOI
Improvements in Residual Stress Measurement by the Incremental Centre Hole Drilling Technique
TL;DR: In this paper, the authors present results which advance and improve the usefulness, accuracy and efficiency of incremental center hole drilling as a method of measuring near surface residual stress fields, with particular emphasis on providing optimal values for the number of drilling step increments and their corresponding size.
References
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Journal ArticleDOI
Measurement of Non-Uniform Residual Stresses Using the Hole-Drilling Method. Part I—Stress Calculation Procedures
TL;DR: In this paper, the Incremental Strain, Average Stress, Power Series, and Integral methods are examined as procedures for determining non-uniform residual stress fields using strain relaxation data from the hole drilling method.
Journal ArticleDOI
Measurement of Non-Uniform Residual Stresses Using the Hole-Drilling Method. Part II—Practical Application of the Integral Method
Journal ArticleDOI
Determination of residual-stress variation with depth by the hole-drilling method
M. T. Flaman,B. H. Manning +1 more
TL;DR: In this article, a finite element procedure was used to develop calibration constants to allow measurements of residual-stress variation with depth to be routinely performed by the hole-drilling method, which may lead to significant errors, particularly where there are large stress variations through the hole depth.
Journal ArticleDOI
Measurement of residual-stress distribution by the incremental hole-drilling method
TL;DR: In this article, a new calibration method is proposed for the hole-drilling method, which uses finite-element analysis to calculate the coefficients for all types of strain-gage rosettes when the hole diameter is predetermined.