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HALABUK, D. NÁVRAT, T.
Originální název
Universal Procedure for Correction of Plasticity Effect in Hole‑Drilling Uniform Residual Stress Measurement
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Background The hole-drilling method is a well-known and widely used technique for the determination of residual stresses, but is limited to materials with linear elastic behaviour. This can be a problem when high residual stresses are measured, since a local yielding can occur due to stress concentration around the drilled hole. Objective If the residual stress exceeds about 80% of the material yield stress, the error caused by the plasticity effect becomes significant. In order to correctly evaluate high uniform residual stresses, a universal procedure for a correction of the plasticity effect is introduced. Methods The procedure uses a neural network and is capable of correcting any combination of uniform residual stresses with magnitudes up to the material yield stress. It also covers a wide range of material parameters, hole diameters, and strain gauge rosettes and it is independent of the orientation of the strain gauge rosette. Results The correction procedure was tested by more than a million randomly generated stress states that covered the entire range of input parameters and performs remarkably well, since the error of the corrected residual stresses is negligible even for the states with residual stress magnitudes equal to the material yield stress. Conclusions The proposed correction extends the application range of the hole-drilling method to high uniform residual stresses and therefore can be very useful for practical measurements.
Klíčová slova
Hole-drilling method; Residual stress; Plasticity efect; Correction procedure; Neural network; Finite element simulations
Autoři
HALABUK, D.; NÁVRAT, T.
Vydáno
15. 8. 2022
Nakladatel
Springer
ISSN
0014-4851
Periodikum
EXPERIMENTAL MECHANICS
Ročník
62
Číslo
8
Stát
Spojené království Velké Británie a Severního Irska
Strany od
1267
Strany do
1287
Strany počet
21
URL
https://link.springer.com/article/10.1007/s11340-022-00869-z
Plný text v Digitální knihovně
http://hdl.handle.net/11012/208241
BibTex
@article{BUT178841, author="Dávid {Halabuk} and Tomáš {Návrat}", title="Universal Procedure for Correction of Plasticity Effect in Hole‑Drilling Uniform Residual Stress Measurement", journal="EXPERIMENTAL MECHANICS", year="2022", volume="62", number="8", pages="1267--1287", doi="10.1007/s11340-022-00869-z", issn="0014-4851", url="https://link.springer.com/article/10.1007/s11340-022-00869-z" }