This paper provides comprehensive relationships for pressure, deflection, energy release rate, and phase angle for bulge testing, which are valid for all combinations of the testing length-scales (film thickness, debond size, and bulge height) and materials. These solutions can be used to design experiments that vary relative contributions of opening and sliding displacements at the crack tip by modulating the film thickness, debond size, and bulge volume. Their closed-form nature greatly facilitates property extraction via regression, e.g., modulus from experimental pressure/deflection data or interface toughness from debond size/injected volume data. This is illustrated using experiments to quantify the interfacial adhesion energy between an initially dry polydimethylsiloxane-glass interface via bulge testing under controlled volume injection. The results indicate that the mode-mixity has no effect on the energy required for debonding, which suggests that wetting of the crack faces behind the debonding front eliminates friction.
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PDMS-Glass Interface Adhesion Energy Determined Via Comprehensive Solutions for Thin Film Bulge/Blister Tests
Aarash Sofla,
Aarash Sofla
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904
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Erkin Seker,
Erkin Seker
Department of Chemistry,
University of Virginia
, Charlottesville, VA 22904; Center for Microsystems in the Life Sciences, University of Virginia
, Charlottesville, VA 22904
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James P. Landers,
James P. Landers
Department of Chemistry,
University of Virginia
, Charlottesville, VA 22904; Center for Microsystems in the Life Sciences, University of Virginia
, Charlottesville, VA 22904
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Matthew R. Begley
Matthew R. Begley
Department of Mechanical and Aerospace Engineering and Department of Materials Science and Engineering,
e-mail: begley@virginia.edu
University of Virginia
, Charlottesville, VA 22904; Center for Microsystems in the Life Sciences, University of Virginia
, Charlottesville, VA 22904
Search for other works by this author on:
Aarash Sofla
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904
Erkin Seker
Department of Chemistry,
University of Virginia
, Charlottesville, VA 22904; Center for Microsystems in the Life Sciences, University of Virginia
, Charlottesville, VA 22904
James P. Landers
Department of Chemistry,
University of Virginia
, Charlottesville, VA 22904; Center for Microsystems in the Life Sciences, University of Virginia
, Charlottesville, VA 22904
Matthew R. Begley
Department of Mechanical and Aerospace Engineering and Department of Materials Science and Engineering,
University of Virginia
, Charlottesville, VA 22904; Center for Microsystems in the Life Sciences, University of Virginia
, Charlottesville, VA 22904e-mail: begley@virginia.edu
J. Appl. Mech. May 2010, 77(3): 031007 (5 pages)
Published Online: February 4, 2010
Article history
Received:
March 7, 2009
Revised:
September 24, 2009
Online:
February 4, 2010
Published:
February 4, 2010
Citation
Sofla, A., Seker, E., Landers, J. P., and Begley, M. R. (February 4, 2010). "PDMS-Glass Interface Adhesion Energy Determined Via Comprehensive Solutions for Thin Film Bulge/Blister Tests." ASME. J. Appl. Mech. May 2010; 77(3): 031007. https://doi.org/10.1115/1.4000428
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