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Effect of Cohesive Zone Size on Peeling of Heterogeneous Adhesive Tape

Avellar, L. and Reese, T. and Bhattacharya, K. and Ravichandran, G. (2018) Effect of Cohesive Zone Size on Peeling of Heterogeneous Adhesive Tape. Journal of Applied Mechanics, 85 (12). Art. No. 121005. ISSN 0021-8936. doi:10.1115/1.4041224.

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The interaction between the cohesive zone and the elastic stiffness heterogeneity in the peeling of an adhesive tape from a rigid substrate is examined experimentally and with finite element simulations. It is established in the literature that elastic stiffness heterogeneities can greatly enhance the force required to peel a tape without changing the properties of the interface. However, much of these concern brittle materials where the cohesive zone is limited in size. This paper reports the results of peeling experiments performed on pressure-sensitive adhesive tapes with both an elastic stiffness heterogeneity and a substantial cohesive zone. These experiments show muted enhancement in the peeling force and suggest that the cohesive zone acts to smooth out the effect of the discontinuity at the edge of the elastic stiffness heterogeneities, suppressing their effect on peel force enhancement. This mechanism is examined through numerical simulation which confirms that the peel force enhancement depends on the strength of the adhesive and the size of the cohesive zone.

Item Type:Article
Related URLs:
URLURL TypeDescription ItemDissertation
Bhattacharya, K.0000-0003-2908-5469
Ravichandran, G.0000-0002-2912-0001
Additional Information:© 2018 ASME. Contributed by the Applied Mechanics Division of ASME for publication in the JOURNAL OF APPLIED MECHANICS. Manuscript received June 28, 2018; final manuscript received August 16, 2018; published online September 12, 2018. Assoc. Editor: Yihui Zhang. This work draws from the doctoral thesis of Louisa Avellar at the California Institute of Technology. Funding Data: U.S. National Science Foundation through the Graduate Research Fellowship DGE-1144469 (Avellar). Designing Materials to Revolutionize and Engineer our Future (DMREF) Program (All authors) Award No. DMS-1535083.
Funding AgencyGrant Number
NSF Graduate Research FellowshipDGE-1144469
Subject Keywords:cohesive zone, adhesive tape, heterogeneous materials
Issue or Number:12
Record Number:CaltechAUTHORS:20190201-111654305
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Official Citation:Avellar LL, Reese TT, Bhattacharya KK, Ravichandran GG. Effect of Cohesive Zone Size on Peeling of Heterogeneous Adhesive Tape. ASME. J. Appl. Mech. 2018;85(12):121005-121005-7. doi:10.1115/1.4041224
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92565
Deposited By: George Porter
Deposited On:01 Feb 2019 22:28
Last Modified:16 Nov 2021 03:51

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