Experimental Comparison of In-Depth Residual Stresses Measured with Neutron and X-Ray Diffraction with a Numerical Stress Relaxation Correction Method

Bruno Levieil; Florent Bridier; Cédric Doudard; Vincent Klosek; David Thévenet; Sylvain Calloch

doi:10.4028/www.scientific.net/MSF.905.131

Paper Titles

Evolution of Residual Stresses in Linear Deposition Wire-Based Cladding of Ti-6Al-4V
p.101

In Situ EDXRD Study of MAG-Welding Using LTT Weld Filler Materials under Structural Restraint
p.107

In Situ Experiment for Laser Beam Welding of Ti Alloys Using High-Energy X-Rays
p.114

Designing and Validating Parallel Wire Suspension Bridge Wire Strands for Neutron Diffraction Stress Mapping
p.123

Experimental Comparison of In-Depth Residual Stresses Measured with Neutron and X-Ray Diffraction with a Numerical Stress Relaxation Correction Method
p.131

In Situ Stress Measurements during Welding Process
p.137

Minimizing and Characterizing Uncertainties in Neutron Strain Measurements with Special Attention to Grain Size Effects
p.143

New Developments of the Materials Science Diffractometer STRESS-SPEC
p.151

Scanning Three-Dimensional X-Ray Diffraction Microscopy with a High-Energy Microbeam at SPring-8
p.157

HomeMaterials Science ForumMaterials Science Forum Vol. 905Experimental Comparison of In-Depth Residual...

Experimental Comparison of In-Depth Residual Stresses Measured with Neutron and X-Ray Diffraction with a Numerical Stress Relaxation Correction Method

Abstract:

This study is an experimental comparison of in-depth X-ray diffraction residual stress measurements with neutron diffraction measurements. The goal is to evaluate the relevance of the Savaria-Bridier-Bocher [1] stress relaxation correction method. Neutron diffraction are performed on a bent notched specimen. Destructive X-ray diffraction is performed until 5.25mm below the surface by polishing the material. This polishing induces stress relaxation and X-ray diffraction results have to be corrected. For that purpose, a finite element analysis is realised and show good correlation with neutron measurements results. The application of the stress correction method improves the X-ray measurements especially after 2 mm below the surface. The differences between measured and corrected residual stresses from both diffraction techniques are analyzed and discussed.

You might also be interested in these eBooks

Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation VIII

View Preview

Info:

Periodical:

Materials Science Forum (Volume 905)

Pages:

131-136

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.905.131

Citation:

Cite this paper

Online since:

August 2017

Authors:

Bruno Levieil*, Florent Bridier, Cédric Doudard, Vincent Klosek, David Thévenet, Sylvain Calloch

Keywords:

FEA Relaxation Matrix, In-Depth Measurements, Neutron Diffraction, Residual Stress, X-Ray Diffraction (XRD)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] V. Savaria, F. Bridier, P. Bocher, Computational quantification and correction of the errors induced by layer removal for subsurface residual stress measurements, Int. J. Mech. Sc. 64 (2012) 184-195.

DOI: 10.1016/j.ijmecsci.2012.07.003

Google Scholar

[2] T.F. Pedersen, I.L.H. Hansson., Finite element calculations for correction of residual stress profiles of coated and uncoated materials measured by X-ray diffraction, NDT Int 1989, 22, (1989) 347-352.

DOI: 10.1016/0308-9126(89)91149-8

Google Scholar

[3] E. Wasniewski, B. Honnart, F. Lefebvre, E. Usmial, Material removal, correction and laboratory X-ray diffraction, Adv. Mat. Res. 996 (2014) 181.

DOI: 10.4028/www.scientific.net/amr.996.181

Google Scholar

[4] Lambda-Research, Diffraction notes no. 17. Finite element correction for stress relaxation in complex geometries, Cincinnati, OH, USA; (1996).

Google Scholar