A general expression for the maximum force in peeling a tape from a rigid substrate with an initial crack. Issue 6 (26th April 2023)

• Record Type: Journal Article
• Authors: Ciavarella, M.; Chen, S. H.; Gao, H.
• Is Part Of: Journal of adhesion. Volume 99:Issue 6(2023)
• Page Start: 1031
• Page End: 1043
• Publication Date: 2023-04-26
• Subjects: Peeling -- adhesion -- cohesion -- destructive testing -- adhesion by chemical bonding -- mechanical properties of adhesives; Adhesion -- Periodicals; 541.33
• DOI: 10.1080/00218464.2022.2074296
• Languages: English
• ISSNs: 0021-8464

Abstract

ABSTRACT: Assuming a Dugdale cohesive zone, recently a simple Euler beam model has been proposed to understand the transient peeling on an elastic film from a rigid substrate at 90° from the substrate. The model also shows with sufficiently high bending stiffness, a peak force emerges larger than the Rivlin–Kendall steady-state value, scaling with the fourth root of bending stiffness. From the maximum force during peeling, and its steady-state value which is given by the Rivlin–Kendall well-known model, a simultaneous characterisation of the most important cohesive properties (cohesive strength and toughness of the interface) is obtained from a single test. This maximum force eventually saturates at a value which depends on cohesive strength alone. The presence of possibly inevitable initial cracks at the edge of the interface obviously reduces the peak force, and here, we give a simple closed-form approximate solution for this case too.