Publication detail

Ring-Core Residual Stress Measurement: Analysis Of Depth Increment Distribution For Integral Equation Method

CIVÍN, A. VLK, M. NAVRÁTIL, P. MATUG, M.

Original Title

Ring-Core Residual Stress Measurement: Analysis Of Depth Increment Distribution For Integral Equation Method

Type

conference paper

Language

English

Original Abstract

The ring-core method is the semi-destructive experimental method. Correctly determined and properly used calibration or relaxation factors for the residual stress measurement by the ring-core method are essential. Knowledge of their dependence on the geometric changes of the ring-groove and on the disposition of the residual state of stress through the depth of metallic material gives results, correspond of theirs appropriate application. This paper is focused on the evaluation of calibration factors aij and bij, necessary for the residual state of stress determination by the integral equation method. The finite element method is used for simulation of the residual state of stress and to calculate relieved strains on the top of the core. Three types of the depth increment distribution are studied, i.e. constant, increasing and optimized depth increment distribution, which is commonly used.

Keywords

ring-core method, integral method, calibration factors, residual stress, strain gauge

Authors

CIVÍN, A.; VLK, M.; NAVRÁTIL, P.; MATUG, M.

RIV year

2011

Released

9. 5. 2011

Publisher

Institute of Thermomechanics - Academy of Sciences of the Czech Republic - Prague

Location

Prague

ISBN

978-80-87012-33-8

Book

Engineering Mechanics 2011 - 17th International Conference

Edition number

1.

Pages from

83

Pages to

86

Pages count

4

BibTex

@inproceedings{BUT36833,
  author="Adam {Civín} and Miloš {Vlk} and Petr {Navrátil} and Michal {Matug}",
  title="Ring-Core Residual Stress Measurement: Analysis Of Depth Increment Distribution For Integral Equation Method",
  booktitle="Engineering Mechanics 2011 - 17th International Conference",
  year="2011",
  number="1.",
  pages="83--86",
  publisher="Institute of Thermomechanics - Academy of Sciences of the Czech Republic - Prague",
  address="Prague",
  isbn="978-80-87012-33-8"
}