Date of Defense

11-29-2005

First Advisor

Dr. Daniel Kujawski

Second Advisor

Rory Adams, FEMA

Third Advisor

Steve Cummings, FEMA

Abstract

The goal of this study was to develop a technique to improve correlation between computer modeling and experimental testing for press fits through the use of Finite Element Analysis Software. A press fit is a method of assembling two components in which the interference between the two parts joins them together. There are numerous factors affecting press fits such as interference, part geometry, and material. These factors, as well as the inherent limitations of existing equations for estimating press forces, make prediction of press fit behavior quite difficult. Experimental testing was performed focusing on variations in nominal diameter, wall thickness, and interference. Analytical analysis and computational modeling were also performed in conjunction with the experimental testing. Results from the three different methods, experimental, analytical, and computational, were analyzed and compared. Based upon the results of testing performed in this study, as well as the current capabilities of FEMA's FEA software, CosmosWorks, at this time it is not possible to accurately predict the behavior of a press fit prior to experimental testing. The study does however provide a good baseline for further evaluation in the future.

Access Setting

Honors Thesis-Campus Only

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