Award Date


Degree Type


Degree Name

Master of Science (MS)


Mechanical Engineering

First Committee Member

John Wang

Number of Pages



The Thesis provides the finite element analysis of high voltage current joints for atlas pulsed power machine. The role of preload on maintaining joint integrity for multi-bolt assemblies is discussed. The importance of using correct preload is illustrated, along with the types of failure that result due to improper preload. Various techniques used to model bolted connections for finite element analysis are explained in detail. The high voltage current joints are modeled using Solidworks. The pretension effects of multi-bolt assembly are simulated using Ansys Workbench software. This research successfully simulated the stage-I self-loosening behavior of the bolted joints. The stage-I self-loosening refers to failure of bolted connections due to loss of clamping force. The contact status of the surfaces clamped together by bolts is monitored for damage. Additionally, the fatigue tool from Ansys Workbench is used to monitor damage, safety factor and fatigue sensitivity. Finally this thesis can provide promising platform for new users, working on simulating multibolt assemblies, as there is very little literature available on FE analyses that concentrate on multibolt assemblies.


Analysis; Current; Element; Failure; Finite; High; Joints; Voltage

Controlled Subject

Mechanical engineering; Electrical engineering

File Format


File Size

2426.88 KB

Degree Grantor

University of Nevada, Las Vegas




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