The Influence of Cure Time Restrictions on Minimum-Weight Design of Double-Layer SMC Panels

[+] Author and Article Information
M. R. Barone, D. A. Caulk, D. C. Chang

Engineering Mechanics Department, General Motors Research Laboratories, Warren, Mich. 48090

J. Eng. Mater. Technol 101(1), 22-26 (Jan 01, 1979) (5 pages) doi:10.1115/1.3443641 History: Received August 03, 1978; Online August 17, 2010


In this paper, minimum-weight design of double-layer panels made from sheet molding compound is related to cure time—a critical indicator of manufacturing cost. This is done by incorporating cure time restrictions in the optimization analysis. Depending on the design constraints imposed on the panel, the least-weight design can require cure times which are unacceptably long for economical high volume production. Nevertheless, we show that cure time can be brought within acceptable bounds by design changes that incur only modest increases in weight.

Copyright © 1979 by ASME
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