Modeling the mechanical properties of ultra-thin polymer films. (16th November 2017)

• Record Type: Journal Article
• Authors: Espinosa-Loza, Francisco; Stadermann, Michael; Aracne-Ruddle, Chantel; Casey, Rebecca; Miller, Philip; Whitesides, Russel
• Is Part Of: High power laser science and engineering. Volume 5(2017)
• Publication Date: 2017-11-16
• Subjects: indentation, -- optimization, -- ultra-thin films; High power lasers -- Periodicals; 621.366
• DOI: 10.1017/hpl.2017.27
• Languages: English
• ISSNs: 2095-4719

Abstract

Abstract : A modeling method to extract the mechanical properties of ultra-thin films (10–100 nm thick) from experimental data generated by indentation of freestanding circular films using a spherical indenter is presented. The relationship between the mechanical properties of the film and experimental parameters including load, and deflection are discussed in the context of a constitutive material model, test variables, and analytical approaches. Elastic and plastic regimes are identified by comparison of finite element simulation and experimental data.