Abstract
A method is introduced by which the complete state of residual stress in an elastic body may be inferred from a limited set of experimental measurements. Two techniques for carrying out this reconstruction using finite element analysis are compared and it is shown that for exact reconstruction of the stress field via this method, the stress field must be measured over all eigenstrain-containing regions of the object. The effects of error and incompleteness in the measured part of the stress field on the subsequent analysis are investigated in a series of numerical experiments using synthetic measurement data based on the NeT TG1 round-robin weld specimen. It is hence shown that accurate residual stress field reconstruction is possible using measurement data of a quality achievable using current experimental techniques.
Original language | English |
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Pages (from-to) | 1980-1990 |
Number of pages | 11 |
Journal | International Journal of Solids and Structures |
Volume | 51 |
Issue number | 10 |
Early online date | 19 Feb 2014 |
DOIs | |
Publication status | Published - 15 May 2014 |
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Dive into the research topics of 'A method for reconstruction of residual stress fields from measurements made in an incompatible region'. Together they form a unique fingerprint.Profiles
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Dr Harry Coules
- Department of Mechanical Engineering - Lecturer in Structural Integrity
- Solid Mechanics
Person: Academic , Member