A simulation framework for predicting process-induced distortions for precise manufacturing of aerospace thermoset composites

The choice of a suitable material model to simulate process induced distortions is important in order achieve right first time approach the design new moulds. This work investigates ability Cure Hardening Instantaneously Linear Elastic (CHILE) and linear viscoelastic predict an aerospace composite frame. models were coupled with cure kinetics chemical shrinkage capture multi-physics phenomena that take place during curing process. modelling behaviour resin performed use generalized Maxwell model. A novel methodology applied for shifting relaxation times based on its temperature degree cure. It shown more accurately predicts measured due account stress relaxation.