Optimization of precharge placement in sheet molding compound process

This study aims to provide precise predictions for the compression of reinforced polymers during the sheet Molding Compound (SMC) process, ensuring the attainment of a predefined structure while preventing material overflow during the process. The primary challenge revolves around identifying the op...

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Bibliographic Details
Published in:International journal of material forming 2024-07, Vol.17 (4), Article 34
Main Authors: Ebrahimian, Fariba, Rodriguez, Sebastian, Di Lorenzo, Daniele, Chinesta, Francisco
Format: Article
Language:English
Subjects:
CAE) and Design
Computational efficiency
Computational Intelligence
Computer Science
Computer-Aided Engineering (CAD
Control
Dynamical Systems
Engineering
Engineering Sciences
Machines
Manufacturing
Manufacturing Empowered by Digital Technologies and Twins
Materials
Materials Science
Mechanical Engineering
Metamodels
Modeling and Simulation
Numerical models
Optimization
Pressure molding
Processes
Sheet molding compounds
Vibration
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Description
Summary:This study aims to provide precise predictions for the compression of reinforced polymers during the sheet Molding Compound (SMC) process, ensuring the attainment of a predefined structure while preventing material overflow during the process. The primary challenge revolves around identifying the optimal initial shape to prevent material rebound during the process. To confront this issue, a numerical model is utilized, faithfully simulating the SMC process and forming the foundation for our investigations. Furthermore, to optimize the pre-fill stage, a surrogate model is proposed to enhance modeling efficiency, and then an inverse analysis method is applied. This approach of minimizing material rebound during the SMC process results in a reliable metamodel to predict an initial mass shape accurately and at a low computational cost, thus ensuring the squeezed material fits the mold shape.
ISSN:1960-6206
1960-6214
DOI:10.1007/s12289-024-01836-w