Residual Stress and Deformation of Thermosetting Resin Molds under Various Cooling Conditions

Abstract

This paper is concerned with the residual stress and deformation of thermosetting resin strip produced by rapid cooling under three cooling conditions, that is, both sides cooling, single side cooling without constraint and single side cooling with constraint on warp. These are the most simplified models for expressing the cooling process of resin molding. First, the theoretical value of the residual stress and deformation of the thermosetting resin strips under the three cooling conditions were obtained by the liner viscoelastic theory. The specimens were then actually subjected to rapid cooling in the three cooling conditions. After rapid cooling, the residual stresses and deformations were measured by the layer removal methed. The experimental and theoretical results are then compared and discussed.