Zhang, Y.; Ganguly, S.; Edwards, L. and Fitzpatrick, M.E.
|DOI (Digital Object Identifier) Link:||http://dx.doi.org/10.1016/j.actamat.2004.07.045|
|Google Scholar:||Look up in Google Scholar|
We present measurements of the cross-sectional residual stress profile in a 2024 aluminium alloy VPPA weld using a newly invented technique - the contour method. The method is destructive, but simple in principle and easy in use. It needs only one straight cut through a sample on the plane of interest, followed by measurement of the surface contour produced by relaxation of the pre-existing stress field. Finite-element modelling is then used to back-calculate the original stress field. In this case we validate measurements made with the contour method, by using non-destructive diffraction data obtained from the same weld before cutting. This allows a comparison to be made and excellent agreement between the results from the two methods is seen. The study indicates that the contour method is a powerful novel technique to obtain an accurate full two-dimensional map of residual stress fields.
|Item Type:||Journal Article|
|Copyright Holders:||2004 Acta Materialia Inc.|
|Extra Information:||residual stresses; contour method; neutron diffraction; synchrotron radiation; VPPA welding
|Academic Unit/Department:||Mathematics, Computing and Technology > Engineering & Innovation
Mathematics, Computing and Technology
|Depositing User:||Michael E. Fitzpatrick|
|Date Deposited:||11 Jul 2006|
|Last Modified:||13 Feb 2014 10:55|
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