An assessment of residual-stress measurements around cold-worked holes |
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Authors: | M Priest C G Poussard M J Pavier D J Smith |
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Institution: | (1) Department of Mechanical Engineering, University of Bristol, Queen's Building, University Walk, BS8 1TR Bristol, UK |
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Abstract: | An X-ray diffraction technique was employed to determine the residual stresses introduced by cold working a fastener hole
in a 6-mm thick 2024-T351 aluminum plate. The radial and tangenital residual stresses were measured at both faces of the plate
and the measurements compared with the results from a two-dimensional axisymmetric finite-element model. The comparisons were
favorable, although modifying the finite-element model to simulate the X-ray process provided better agreement. Experimental
determinations of residual stresses showed differences between the two faces of the plate. This feature was attributed to
the directional nature of the cold-working process.
Paper was presented at the 1994 SEM Spring Conference on Experimental Mechanics held in Baltimore, MD on June 8–10. |
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Keywords: | finite elements stress-strain of material behaviors nondestructive testing numerical methods plasticity residual stresses X-ray analysis |
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