Masters Theses
Date of Award
12-2004
Degree Type
Thesis
Degree Name
Master of Science
Major
Mechanical Engineering
Major Professor
Don W. Dareing
Committee Members
J. A. M. Boulet, John D. Landes
Abstract
The retrieval of nano-size particles from suspects and crime scenes can significantly enhance surveillance and crime investigation. The Thesis deals with extensive study of free surface energy coupled with Hertzian contact energy under different conditions between a nano-sized particle and a substrate and the various methods of dislodging the particle. Using the Johnson-Kendall-Roberts (JKR) theory, a physical spring-mass-damper model is defined. Mathematical equations are formulated and solved with non-linear equations simulating the real world situation. Using Newmark’s β method, the system is solved for response of free and forced vibrations taking moisture to be responsible for damping. Key assumptions such as the particle and substrate are perfectly elastic and damping force is linear have been applied. Then a parameter study is conducted on two types of particles. The results have been summarized along with suggestions for future work.
Recommended Citation
Podila, Krishna Prasad, "Retrieval of Nano-Size Particles from a Solid Substrate. " Master's Thesis, University of Tennessee, 2004.
https://trace.tennessee.edu/utk_gradthes/2323