PROCESS SIMULATION OF FIBER REINFORCED PLASTICS

摘要

Advanced composite materials such as CFRP possess many characteristics that are superior to other structural materials. However, thermal strain and residual thermal stresses were generated during process for cure of thermoset resin matrix composites, leading to the issue that products could not be realized exactly according to design. In this study, simulation was developed that considers the effects of cure process of thermoset resin in addition to mechanical design of products. The simulation consists of three kinds of analysis: 1) heat transfer simulation during curing; 2) curing temperature simulation of thermoset resin; and 3) thermal deformation simulation during curing. Heat transfer simulation was developed that can be used even for complex heat inputs using apparent heat transfer coefficient. Curing temperature simulation was developed to judge curing temperature focused on the quantity of heat required until curing. Thermal deformation simulation was developed to find the thermal deformation during curing, considering the mold.