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|Title:||Extracting the mechanical properties of a viscoelastic polymeric film on a hard elastic substrate||Authors:||Zhang, C.Y.
|Issue Date:||Oct-2004||Citation:||Zhang, C.Y., Zhang, Y.W., Zeng, K.Y. (2004-10). Extracting the mechanical properties of a viscoelastic polymeric film on a hard elastic substrate. Journal of Materials Research 19 (10) : 3053-3061. ScholarBank@NUS Repository. https://doi.org/10.1557/JMR.2004.0382||Abstract:||A semi-analytical approach was developed to study the creep response of a viscoelastic polymeric thin film on a hard elastic substrate under flat-ended punch indentation. This approach allows one to separate mechanical properties of the film from its substrate. To verify the approach, flat-ended punch creep indentation tests were performed to obtain the long-time viscoelastic behaviors of a polymethyl-methacrylide film overlying on an aluminum substrate. Three viscoelastic models describing the constitutive equations of the polymer film are compared in this paper. "Film-only" viscoelastic parameters were extracted by fitting with the experimental creep curves of flat-ended punch indentation. It is shown that the present approach provides an effective way to characterize the mechanical properties of a polymeric film on an elastic substrate. © 2004 Materials Research Society.||Source Title:||Journal of Materials Research||URI:||http://scholarbank.nus.edu.sg/handle/10635/107036||ISSN:||08842914||DOI:||10.1557/JMR.2004.0382|
|Appears in Collections:||Staff Publications|
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