Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Whittington, Wilburn
Committee Member
Barrett, Christopher
Committee Member
Hammi, Youssef
Date of Degree
8-9-2022
Document Type
Graduate Thesis - Open Access
Major
Mechanical Engineering
Degree Name
Master of Science (M.S.)
College
James Worth Bagley College of Engineering
Department
Department of Mechanical Engineering
Abstract
This work investigates the velocity-dependent coefficient of friction between concrete and 300 Maraging steel over short displacements. A modified torsional Hopkinson bar is utilized for rotating thin-walled steel rings in contact with a concrete disk under static precompression. Rotational velocity is varied between tests to determine the velocity dependence of the friction coefficient. Normal force is varied between certain tests to determine the pressure dependence of the friction coefficient between the concrete and steel. Three different types of concrete are tested to deduce any composition effect on the friction coefficient. Dry and greased conditions’ impact on the friction coefficient are also evaluated. Lastly, the displacement dependence (fade) is considered for the concrete with regards to the steel. Discussion of the usefulness of this data in modeling and experimentation of impact between concrete and steel is disclosed.
Recommended Citation
Duncan, Trace A., "An investigation into the velocity-dependence of the coefficient of friction between concrete and maraging steel" (2022). Theses and Dissertations. 5548.
https://scholarsjunction.msstate.edu/td/5548