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Reconstruction of Residual Stress in a Welded Plate Using the Variational Eigenstrain Approach

Abstract:

We present the formulation for finding the distribution of eigenstrains, i.e. the sources of residual stress, from a set of measurements of residual elastic strain (e.g. by diffraction), or residual stress, or stress redistribution, or distortion. The variational formulation employed seeks to achieve the best agreement between the model prediction and some measured parameters in the sense of a minimum of a functional given by a sum over the entire set of measurements. The advantage of this ap...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Regino, GM More by this author
Publication date:
2005-10-02
URN:
uuid:a093b1f8-992c-436e-a51c-62b7fed67ebf
Source identifiers:
395838
Local pid:
pubs:395838
Keywords:

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