Journal
FINITE ELEMENTS IN ANALYSIS AND DESIGN
Volume 69, Issue -, Pages 48-61Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.finel.2013.02.003
Keywords
Peen forming; Shot peening; Finite element; Peening trajectory; Boundary conditions; Local curvature
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Rio Tinto Alcan
- Fondation de Polytechnique
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Peen forming is a manufacturing process commonly used in the aerospace industry to shape large and thin panels such as wing and fuselage skins and rocket panels. Due to the large size of the components, this process is generally performed by moving the parts through a peening enclosure or by moving peening equipment following a trajectory on the parts. Previous research on peen forming simulation has rarely considered the influence of the peening pattern on the resulting deformed shape. The purpose of this work was therefore to evaluate experimentally and numerically this effect using small scale tests. A simple model was proposed to simulate incremental deflections as the shot stream traveled over the samples. Model parameters were calibrated experimentally and then applied to a different geometry for validation. Finite element analyses correctly predicted the complex radius distribution arising from the peening path and the constraints applied to the sample during peening. (C) 2013 Elsevier B.V. All rights reserved.
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