Residual Stress and Deformation of PMMA due to Thermoviscoelastic Behavior

Abstract

This paper is concerned with the residual stress and deformation of PMMA beam produced by rapid cooling from both sides under various temperature conditions. The theoretical value of the residual stress and deformation of this beam are calculated by using the fundamental equations based on the linear viscoelastic theory. On the other hand, the specimens were then actually subjected to rapid cooling under the same temperature conditions. After rapid cooling, the residual stress and deformation are measured. The experimental and theoretical results are then compared and discussed.