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Article: Stress relaxation behavior of 3501-6 epoxy resin during cure.
- Article from:
- Polymer Engineering and Science
- Article date:
- December 15, 1996
- Author:
CopyrightCOPYRIGHT 1996 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
One of the most significant problems in the manufacturing of polymer composites is the development of residual stress and warpage. Residual stresses have detrimental effects on many issues from dimensional stability to durability. If composites are to be utilized in greater number and in new applications, then the ability to predict processing-induced residual stress (and its effects) is critical. The focus of this paper is on one aspect of the residual stress problem: modeling the development of mechanical properties during cure. This work represents the first systematic analysis of the effect of cure state on [T.sub.g], relaxation modulus, and ...