A parametric cohesive zone beam theory analysis of mixed-mode graphene transfer. (March 2019)

• Record Type: Journal Article
• Authors: Jain, Shruti; Yang, Tianhao; Negley, Maria; Na, Seung Ryul; Liechti, Kenneth M.; Bonnecaze, Roger T.
• Is Part Of: International journal of adhesion & adhesives. Volume 89(2019)
• Page Start: 129
• Page End: 138
• Publication Date: 2019-03
• Subjects: delamination -- fracture mechanics -- cohesive zone model -- interfaces -- competing fracture paths; Adhesion -- Periodicals; Adhesives -- Periodicals; Adhésion (Physique) -- Périodiques; Adhésifs -- Périodiques; Adhesie; Kleefstoffen; Adhesion; Adhesives; Periodicals; 668.3
• DOI: 10.1016/j.ijadhadh.2018.12.004
• Languages: English
• ISSNs: 0143-7496

Abstract

Abstract: Competing interface fracture paths in the transfer of 2D materials from their growth substrate to a flexible polymer substrate are examined by developing finite element and semi-analytical beam theory models. With limited data on interface characterization for 2D materials, a parameter space is chosen based on the polyimide-graphene-copper foil system. Cohesive zone models with two different damage initiation criteria are explored. Algebraic equations to predict load, crack length, damage zone length, rotation and mode-mix are extracted through scaling analysis and correlation of the numerical data. Successful transfer of graphene to a polymer substrate is observed to be dependent on relative interface strengths rather than fracture energies.