The Contour Method for Residual Stress Determination Applied to an AA6082-T6 Friction Stir Butt Weld

Valentin Richter-Trummer; Pedro Miguel Guimarães Pires  Moreira; João Ribeiro; Paulo Manuel Salgado Tavares  de Castro

doi:10.4028/www.scientific.net/MSF.681.177

Paper Titles

Experimental Verification of the Hole Drilling Plasticity Effect Correction
p.151

Residual Stress Analysis Using the Hole-Drilling Method and Geometry-Specific Calibration Functions
p.159

Residual Stress Measurement in Coated Plates Using Layer Growing/ Removing Methods: 100^Th Anniversary of the Publication of Stoney’s Paper “the Tension of Metallic Films Deposited by Electrolysis”
p.165

Determination of Residual Stresses in Thermal and Cold Sprayed Coatings by the Hole-Drilling Method
p.171

The Contour Method for Residual Stress Determination Applied to an AA6082-T6 Friction Stir Butt Weld
p.177

Evaluation of Residual Stresses in Dissimilar Weld Joints
p.182

Influence of Laser Remelting Process on Strain and Residual Stresses in Nodular Iron
p.188

Determination of Residual Stresses in Welded Structural Steels with Help of Micromagnetic Measurements
p.194

PRECIX, Robotic System for Residual Stress Analysis by X-Ray Diffraction
p.202

HomeMaterials Science ForumMaterials Science Forum Vol. 681The Contour Method for Residual Stress...

The Contour Method for Residual Stress Determination Applied to an AA6082-T6 Friction Stir Butt Weld

Abstract:

Residual stresses parallel to the welding direction on a cross-section of a 3 mm thick friction stir butt-welded aluminum alloy AA6082-T6 plate were determined using the contour method. A full contour map of longitudinal residual stresses on a weld cross section was determined in this way, revealing detailed information on the residual stress distribution in the inside of a friction stir weld, especially in the nugget zone. The typical M-shape, usually described for the residual stress distribution in friction stir welds, was found. The maximum residual stresses are below the yield strength of the material in the shoulder region and, outside of the welding region, low tensile and compressive residual stresses are responsible for the necessary stress equilibrium on the plane of interest. A comparison was made with the established incremental hole drilling technique on an equivalent plate for validation and good agreement of both techniques was obtained. The distribution, as well as the magnitude of the residual stresses measured by both techniques, is very similar, thus validating both the experimental and numerical procedures used for the contour method application, presented and discussed in the present paper.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 681)

Pages:

177-181

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.681.177

Citation:

Cite this paper

Online since:

March 2011

Authors:

Valentin Richter-Trummer, Pedro Miguel Guimarães Pires Moreira, João Ribeiro, Paulo Manuel Salgado Tavares de Castro

Keywords:

Contour Method, Friction Stir Welding (FSW), Incremental Hole Drilling Technique, Residual Stress, Surface Mapping

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] M. Prime, Cross-sectional mapping of residual stresses by measuring the surface contour after a cut, Journal of Engineering Materials and Technology-Transactions of the ASME 123 (2001) 162–168.

DOI: 10.1115/1.1345526

Google Scholar

[2] V. Richter-Trummer, S. M. O. Tavares, P. M. G. P. Moreira, M. A. V. de Figueiredo, P. M. S. T. de Castro, Residual stress measurement using the contour and the sectioning methods in a MIG weld: effects on the stress intensity factor, Ciência e Tecnologia dos Materiais 20 (2008).

DOI: 10.1016/j.ctmat.2016.07.015

Google Scholar

[3] ASTM, E837 - standard test method for determining residual stresses by the hole-drilling straingage method 1, ASTM Standard, (2007).

Google Scholar

[4] S. H. Shin, FEM analysis of plasticity-induced error on measurement of welding residual stress by the contour method, Journal of Mechanical Science and Technology 19 (2005) 1885–1890.

DOI: 10.1007/bf02984267

Google Scholar

[5] V. Richter-Trummer, Characterization of Different Aluminium Alloys of the Series 6000 and of their Joining Processes, Mestrado Integrado em Engenharia Mecânica, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal, (2008).

DOI: 10.24873/j.rpemd.2022.09.876

Google Scholar

[6] MathWorks, MATLAB spline toolbox, (2009).

Google Scholar

[7] MathWorks, MATLAB 2009a, (2009).

Google Scholar

[8] Abaqus version 6. 7, (2007).

Google Scholar

[9] J. Altenkirch, A. Steuwer, P. J. Withers, S. W. Williams, M. Poad, S. W. Wen, Residual stress engineering in friction stir welds by roller tensioning, Science and Technology of Welding and Joining 14 (2009) 185–192.

DOI: 10.1179/136217108x388624

Google Scholar

[10] M. B. Prime, T. Gnaeupel-Herold, J. A. Baumann, R. J. Lederich, D. M. Bowden, R. J. Sebring, Residual stress measurements in a thick, dissimilar aluminum alloy friction stir weld, Acta Materialia 54 (2006) 4013–4021.

DOI: 10.1016/j.actamat.2006.04.034

Google Scholar