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Analyses of edge effects on residual stresses in film strip/substrate systems

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.1288161· OSTI ID:20217434
 [1]
  1. Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
The residual stress distribution in a thin-film strip overlaid on a substrate is influenced by the edges of the strip. An analytical model is developed to derive a closed-form solution for the stress distribution along the film width. Because the film is much thinner than the substrate, the stress variation through the film thickness is ignored; however, the stress variation through the substrate thickness is considered in the analysis. Compared to the existing analytical models, the present model is more rigorous and the analytical results agree better with both finite element results and experimental measurements. (c) 2000 American Institute of Physics.
OSTI ID:
20217434
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 88; ISSN JAPIAU; ISSN 0021-8979
Country of Publication:
United States
Language:
English

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