Date of Award

Spring 1997

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Mechanical Engineering

First Advisor

Stango, Robert

Second Advisor

Rice, James

Third Advisor

Matar, Joseph E.

Abstract

Polyurethane elastomers are used in flexible couplings for power transmission applications, but the material properties can degrade when exposed to elevated temperatures and high humidity. The goal of this study was to determine the processing conditions needed to produce a urethane that was less affected by temperature and/or humidity. Factorial experimental design techniques (FED, also known as DOE, and Taguchi Methods) were used to efficiently determine the effects that five different processing variables had on the toughness of the polyurethane after exposure to various environmental conditions.

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