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Cohesive Zone Smoothing of Bending Stiffness Heterogeneities in Tape Peeling Experiments

Avellar, Louisa and Reese, Tucker and Bhattacharya, Kaushik and Ravichandran, Guruswami (2018) Cohesive Zone Smoothing of Bending Stiffness Heterogeneities in Tape Peeling Experiments. In: Fracture, Fatigue, Failure and Damage Evolution. Conference Proceedings of the Society for Experimental Mechanics Series. Vol.6. Springer , Cham, pp. 73-76. ISBN 978-3-319-95878-1.

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This work studies the interaction between the cohesive zone and elastic stiffness heterogeneity in the peeling of an adhesive tape from a rigid substrate. It is understood that elastic stiffness heterogeneities can greatly enhance the adhesion of a tape without changing the properties of the interface. However, in experiments performed on adhesive tapes with both an elastic stiffness heterogeneity and a substantial cohesive zone, muted adhesion enhancement was observed. It is proposed 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 adhesion. This work presents peel tests performed with heterogeneously layered 3 M 810 tape that demonstrate the muted enhancement. Additionally, numerical simulations further investigating the interaction between elastic heterogeneity and cohesive zone are presented.

Item Type:Book Section
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URLURL TypeDescription ReadCube access
Bhattacharya, Kaushik0000-0003-2908-5469
Ravichandran, Guruswami0000-0002-2912-0001
Additional Information:© 2019 The Society for Experimental Mechanics, Inc. First Online: 19 September 2018. We gratefully acknowledge the support of the National Science Foundation Award No. DMS-1535083 under the Designing Materials to Revolutionize and Engineer our Future (DMREF) program. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1144469.
Funding AgencyGrant Number
NSF Graduate Research FellowshipDGE-1144469
Subject Keywords:Fracture; Cohesive zone; Peeling; Laminates; Heterogeneous materials
Series Name:Conference Proceedings of the Society for Experimental Mechanics Series
Record Number:CaltechAUTHORS:20200828-121917087
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105143
Deposited By: Tony Diaz
Deposited On:28 Aug 2020 21:25
Last Modified:16 Nov 2021 18:40

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