Date of Graduation
Statler College of Engineering and Mineral Resources
Mechanical and Aerospace Engineering
Ever J Barbero
Actuated polymer films (APF) are a novel kind of material with several possible applications (e.g., dynamic roughness for aerodynamic flow control, tactile responsive touch panels, dust mitigation systems for solar panels and other devices, and tunable hydrophobicity surfaces). The development of the required analytical and numerical tools for the design and analysis of APF's is addressed in this research.;A hyperelastic hysteretic material model (Bergstrom-Boyce) is used to model the APF. A program to calibrate the Bergstrom-Boyce material parameters from experimental data is developed using MATLABRTM. The soundness of this calibration tool is assessed using experimental data from the literature.;To calculate the response of the APF and the power requirement to actuate the film, a program is written. The performance of this program is validated with experimental results from the literature. Two- and three-dimensional models are analyzed and compared using ABAQUSRTM.;A procedure for the determination of the volume fraction of the actuators embedded in the APF is proposed using digital image processing techniques and Voronoi diagrams.
Gutierrez, Joaquin Maria, "Modeling of Roughness and Dissipation of Actuated Polymer Films" (2011). Graduate Theses, Dissertations, and Problem Reports. 4726.