Mechanical & Materials Engineering, Department of


First Advisor

Kevin D. Cole

Date of this Version



Temperature and Stress Analysis during Tank Decanting and Refilling Process, Zhe Liu, Master Thesis, University of Nebraska, May 2018


A THESIS Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Master of Science, Major: Mechanical Engineering and Applied Mechanics, Under the Supervision of Professor Kevin D. Cole. Lincoln, Nebraska: May, 2018

Copyright (c) 2018 Zhe Liu


In the present work, an analytical expression for the temperature distribution of the cross-section of a natural gas transport tank is derived by time-matching Green’s Function method. The tank decanting process can produce a living temperature decrease inside the tank wall while the filling process can produce a large temperature increase. This behavior can cause damage to the inner layer of the tank. The damage occurs in the form of excessive stress in the wall which is combined mechanical stress and thermal stress. Therefore, thermo-elasticity analysis is another objective of the present work. A simplified mechanical model is established in the present work and the thermo-elastic stress analysis is undertaken for both decanting process and filling process. In order to verify the analytical solution, an FEM model by ABAQUS is included.

Advisor: Kevin D. Cole