title: Finite deformation mechanics in buckled thin films on compliant supports.
abstract: We present detailed experimental and theoretical studies of the mechanics of thin buckled films on compliant substrates. In particular, accurate measurements of the wavelengths and amplitudes in structures that consist of thin, single-crystal ribbons of silicon covalently bonded to elastomeric substrates of poly(dimethylsiloxane) reveal responses that include wavelengths that change in an approximately linear fashion with strain in the substrate, for all values of strain above the critical strain for buckling. Theoretical reexamination of this system yields analytical models that can explain these and other experimental observations at a quantitative level. We show that the resulting mechanics has many features in common with that of a simple accordion bellows. These results have relevance to the many emerging applications of controlled buckling structures in stretchable electronics, microelectromechanical systems, thin-film metrology, optical devices, and others.
authors: Department of Mechanical and Aerospace Engineering, Arizona State University, Tempe, AZ 85287, USA.
authors: Hanqing
authors: H
authors: Jiang
authors: Dahl-Young
authors: DY
authors: Khang
authors: Jizhou
authors: J
authors: Song
authors: Yugang
authors: Y
authors: Sun
authors: Yonggang
authors: Y
authors: Huang
authors: John A
authors: JA
authors: Rogers
mesh_terms: D001665:Binding Sites; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D004548:Elasticity; D004738:Engineering / Q000379:methods*; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D008958:Models, Molecular; D008962:Models, Theoretical; D012828:Silicones / Q000737:chemistry*; D013314:Stress, Mechanical
chemical_list: D004129:Dimethylpolysiloxanes; D012828:Silicones; C013830:baysilon