Detail publikace

Efficiency of Plasticity Correction in the Hole-Drilling Residual Stress Measurement

NÁVRAT, T. HALABUK, D. VOSYNEK, P.

Originální název

Efficiency of Plasticity Correction in the Hole-Drilling Residual Stress Measurement

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This paper focuses on the analysis of the plasticity effect in the measurement of the residual stress by the hole-drilling method. Relaxed strains were evaluated by the computational simulation of the hole-drilling experiment using the finite element method. Errors induced by the yielding were estimated for uniaxial tension, plane shear stress state and equi-biaxial stress state at various magnitudes of residual stress uniformly distributed along the depth. The correction of the plasticity effect in the evaluation of residual stress was realized according to the method proposed by authors from the University in Pisa, which was coded in MATLAB. Results obtained from the MATLAB script were compared to the original input data of the hole-drilling simulation and discussed. The analyses suggested that the plasticity effect is negligible at the ratio of applied equivalent stress to yield stress, being 0.6, and that the correction of the plasticity effect is very successful at the previous ratio, being 0.9. Failing to comply with the condition of the strain gauge rosette orientation according to the principal stresses directions causes an increase in the relative error of corrected stresses only for the case of uniaxial tension. It affects the relative error negligibly for the plane shear and equi-biaxial stress states.

Klíčová slova

residual stress; hole-drilling method; plasticity effect; finite element method; computational simulation

Autoři

NÁVRAT, T.; HALABUK, D.; VOSYNEK, P.

Vydáno

31. 7. 2020

Nakladatel

MDPI

ISSN

1996-1944

Periodikum

Materials

Ročník

13

Číslo

15

Stát

Švýcarská konfederace

Strany od

1

Strany do

15

Strany počet

15

URL

https://www.mdpi.com/1996-1944/13/15/3396

Plný text v Digitální knihovně

http://hdl.handle.net/11012/195068

BibTex

@article{BUT164635,
  author="Tomáš {Návrat} and Dávid {Halabuk} and Petr {Vosynek}",
  title="Efficiency of Plasticity Correction in the Hole-Drilling Residual Stress Measurement",
  journal="Materials",
  year="2020",
  volume="13",
  number="15",
  pages="1--15",
  doi="10.3390/ma13153396",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/13/15/3396"
}