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A threshold-force model for adhesion and mode I fracture

Hulikal, Srivatsan and Bhattacharya, Kaushik and Lapusta, Nadia (2016) A threshold-force model for adhesion and mode I fracture. . (Submitted)

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We study the relation between a threshold-force based model at the microscopic scale and mode I fracture at the macroscopic scale in a system of discrete interacting springs. Specifically, we idealize the contact between two surfaces as that between a rigid surface and a collection of springs with long-range interaction and a constant tensile threshold force. We show that a particular scaling similar to that of crack-tip stress in Linear Elastic Fracture Mechanics leads to a macroscopic limit behavior. The model also reproduces the scaling behaviors of the JKR model of adhesive contact. We determine how the threshold force depends on the fracture energy and elastic properties of the material. The model can be used to study rough-surface adhesion.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Bhattacharya, Kaushik0000-0003-2908-5469
Lapusta, Nadia0000-0001-6558-0323
Additional Information:Submitted on 10 Jun 2016. We gratefully acknowledge the support for this study from the National Science Foundation (grant EAR 1142183) and the Terrestrial Hazards Observations and Reporting center (THOR) at Caltech.
Funding AgencyGrant Number
Terrestrial Hazards Observation and Reporting CenterUNSPECIFIED
Record Number:CaltechAUTHORS:20161012-160619944
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71032
Deposited By: Melissa Ray
Deposited On:12 Oct 2016 23:18
Last Modified:03 Oct 2019 16:03

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