Document Type


Date of Award


Degree Name

Master of Science in Manufacturing Engineering - (M.S.)


Manufacturing Engineering Division

First Advisor

Keith T. O'Brien

Second Advisor

R. S. Sodhi

Third Advisor

Rong-Yaw Chen


Fabrication of parts from glass mat thermoplastic involves the heating of the composite to a temperature above the melting point of the matrix iesin to obtain a low viscosity and to allow sheets to be molded without fractui ing. The focus of this work is this heating stage, particularly the influence of a source term in the energy equation.

The solution to this physical situation is complicated by the nature of the GMT sheet, which has a layeied structure, with diffeient thermophysical properties in different layers. The use of source terms has not been reported yet. and is the piimary motivation for this work. Earlier work on microwave heating of thermoplastics and body tissues, has indicated that dual beam microwave heating is veiv efficient at heating the interior of a specimen without undue thermal loading of the suilace. In this study it is shown that the heating times can be reduced and impioved heat distributions can be obtained using dual beam microwaves as heat souses. Also the effect of lolling on the heating time will be studied.

Included in

Manufacturing Commons



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