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Cohesive Zone Law Extraction from an Experimental Peel Test

Kovalchick, Christopher and Xia, Shuman and Ravichandran, Guruswami (2012) Cohesive Zone Law Extraction from an Experimental Peel Test. In: Experimental and Applied Mechanics. Conference Proceedings of the Society for Experimental Mechanics Series. Vol.4. Springer , New York, NY, pp. 237-245. ISBN 978-1-4614-4225-7.

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The measurement of interface mechanical properties between an adhesive layer and a substrate is significant for optimization of a high-quality interface. A common method for measuring these properties is the peel test. Although analytical models exist for the peeling of elastic adhesives from smooth surfaces, there is a need for rigorous experiments in this area. Tests are conducted using a peel arrangement capable of peel angles from 0° to 180°. Experimental validation is achieved through a series of displacement-controlled tests using elastic adhesive tapes. The steady-state peel force is measured at each angle and compared to the predicted values based upon the governing relations of Kendall and Rivlin. The fibrillation zone of a simple adhesive material is imaged at the contact point between the adhesive and a rigid surface. By quantifying the size of this process zone, an inverse formulation is developed to extract an angle-dependent cohesive zone law based upon finite deformation beam theory. The adhesion energy during a peel test is then determined along with the force distribution in the process zone. This local method of determining the adhesion energy is compared to the global method of Rivlin in the context of finite deformations, showing good agreement.

Item Type:Book Section
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Ravichandran, Guruswami0000-0002-2912-0001
Additional Information:© 2013 The Society for Experimental Mechanics, Inc. First Online: 06 September 2012.
Subject Keywords:Cohesive zone; Peeling; Adhesion
Series Name:Conference Proceedings of the Society for Experimental Mechanics Series
Record Number:CaltechAUTHORS:20200520-073717282
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103341
Deposited By: Tony Diaz
Deposited On:20 May 2020 15:53
Last Modified:16 Nov 2021 18:20

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