Optimisation of location and dimension of SMC precharge in compression moulding process

Authors:
Moo-Sun Kim;Woo Il Lee;Woo-Suck Han;Alain Vautrin
Affiliations:
School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, South Korea and Division SMS, LTDS/CNRS UMR 5513, Ecole Nationale Supérieure des Mines de Saint-Etien ...;School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, South Korea;Division SMS, LTDS/CNRS UMR 5513, Ecole Nationale Supérieure des Mines de Saint-Etienne, 42023 Saint-Etienne, France;Division SMS, LTDS/CNRS UMR 5513, Ecole Nationale Supérieure des Mines de Saint-Etienne, 42023 Saint-Etienne, France
Venue:
Computers and Structures
Year:
2011

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Abstract

The main goal of the present study is to optimise the precharge conditions such as the precharge location and dimensions that give significant effects on the mechanical performance of composite structures manufactured by the compression moulding process. As preliminary step of optimisation, we developed a manufacturing simulation program to predict the fibre volume fraction and fibre orientation. And coupled with this simulation program and a structural analysis program, a genetic algorithm (GA) is implemented to optimise the precharge conditions. The penalty function method and the repair algorithm are modified for handling constraints. The repair algorithm is applied to a symmetric structure and an arbitrary shape structure to find optimal precharge conditions.