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• W4313429532 abstract "Abstract Background Relaxation methods determine residual stresses by measuring the deformations produced by incremental removal of a subdomain of the specimen. Measured strains at any given increment, determined by the cumulative effect of the relieved stresses, appear as an integral equation, which must be inverted to obtain residual stresses. In practice, stress distributions are discretized by a finite-dimensional basis, to transform the integral equations into a linear system of equations, which is often ill-conditioned. Objective This article demonstrates that the problem is actually ill-posed and comes with an inherent bias-variance tradeoff. Methods The hole drilling method is used as an example application, and the practical effects of ill-posedness are illustrated. Results Traditional regularization of the solution by limiting the resolution of the discretization reduces solution variance (noise) at the expense of increased bias and often results in the ultimately harmful practice of taking fewer data points. A careful analysis including the alternate Tikhonov regularization approach shows that the highest number of measurements should always be taken to reduce the variance for a given regularization scheme. Unfortunately, the variability of a regularized solution cannot be used to build a valid confidence interval, since an unknown bias term is always present in the true overall error. Conclusions The mathematical theory of ill-posed problems provides tools to manage the bias-variance tradeoff on a reasonable statistical basis, especially when the statistical properties of measurement errors are known. In the long run, physical arguments that provide constraints on the true solution would be of utmost importance, as they could regularize the problem without introducing an otherwise unknown bias. Constraining the minimum length scale to some physically meaningful value is one promising possibility." @default.
• W4313429532 created "2023-01-06" @default.
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• W4313429532 date "2022-12-19" @default.
• W4313429532 modified "2023-09-27" @default.
• W4313429532 title "Ill-Posedness and the Bias-Variance Tradeoff in Residual Stress Measurement Inverse Solutions" @default.
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• W4313429532 cites W1531455566 @default.
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• W4313429532 cites W1578255497 @default.
• W4313429532 cites W190340551 @default.
• W4313429532 cites W1964157549 @default.
• W4313429532 cites W1964219417 @default.
• W4313429532 cites W1964827113 @default.
• W4313429532 cites W1967813726 @default.
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• W4313429532 cites W1975396157 @default.
• W4313429532 cites W1978068017 @default.
• W4313429532 cites W1980132379 @default.
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• W4313429532 cites W1992514481 @default.
• W4313429532 cites W1995713983 @default.
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• W4313429532 doi "https://doi.org/10.1007/s11340-022-00928-5" @default.
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