Residual stress evaluation by the hole-drilling method with off-center hole: an extension of the integral method
Article Abstract:
The incremental hole-drilling technique can be utilized to study residual stress variations with depth, acquiring strain values for each step by strain gages. These data can be processed by the integral method. Usually strain gages are not spaced equidistant from the hole center nor arranged in the radial direction because of practical difficulties in drilling a centered hole. A development of the integral method for studying stress variations with depth in the specimen for eccentric blind hole cases is shown.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1997
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Local stress-ratio criterion for incremental hole-drilling measurements of shot-peening stresses
Article Abstract:
A criterion to evaluate the influence of the so-called plasticity effect on the final outcome of the incremental hole-drilling technique (HD) is proposed, for measuring residual stresses induced by mechanical surface treatments. The proposed criterion takes into account the strain-hardening effect and the local yield strength of work-hardened surface layers, using the concept of normalized hardness variation.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2006
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A new analytical approach for hole drilling residual stress analysis by full field method
Article Abstract:
The study focuses on the development of a new analytical method for hole drilling residual stress that attempts to consistently use all the available data. The results obtained show the reliability and robustness of the algorithm that helps in testing against numerically generated residual stress fields stimulating in-plane speckle interferometry.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2005
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