Mechanical models are developed to determine the mode I and II adhesion
toughness of monolayer thin films using circular blister tests under the
pressure load. The interface fracture of monolayer thin film blisters is mode I dominant for linear bending with small deflection while it is mode II dominant for membrane stretching with large deflection. By taking the advantage of the large mode mixity difference between these two limiting cases, the mode I and II adhesion toughness are determined in conjunction with a linear failure criterion. Thin films under membrane stretching have larger adhesion toughness than thicker films under bending. Experimental results demonstrate the validity of the method.
- Aeronautical, Automotive, Chemical and Materials Engineering
Published inICTAEM 2018: International Conference on Theoretical, Applied and Experimental Mechanics
Proceedings of the First International Conference on Theoretical, Applied and Experimental Mechanics
VolumeStructural Integrity, vol 5
Pages167 - 173
CitationHARVEY, C.M. ...et al., 2019. Determination of mode I and II adhesion toughness of Monolayer thin films by circular blister tests. In: Gdoutos E. (eds) Proceedings of the First International Conference on Theoretical, Applied and Experimental Mechanics. ICTAEM 2018. Chaim: Springer, pp. 167-173.
VersionAM (Accepted Manuscript)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/
NotesThis is a pre-copyedited version of a contribution published in Gdoutos E. (eds) Proceedings of the First International Conference on Theoretical, Applied and Experimental Mechanics. ICTAEM 2018 published by Springer The definitive authenticated version is available online via https://doi.org/10.1007/978-3-319-91989-8_38
Book seriesStructural Integrity;5