NDLI: Compression moulding simulations of SMC using a multiobjective surrogate-based inverse modeling approach

Content Provider	Springer Nature Link
Author	Marjavaara, B. D. Ebermark, S. Lundström, T. S.
Copyright Year	2009
Abstract	A multiobjective surrogate-based inverse modeling technique to predict the spatial and temporal pressure distribution numerically during the fabrication of sheet moulding compounds (SMCs) is introduced. Specifically, an isotropic temperature-dependent Newtonian viscosity model of a SMC charge is fitted to experimental measurements via numerical simulations in order to mimic the temporal pressure distribution at two spatial locations simultaneously. The simulations are performed by using the commercial computational fluid dynamics (CFD) code ANSYS CFX-10.0, and the multiobjective surrogate-based fitting procedure proposed is carried out with a hybrid formulation of the NSGA-IIa evolutionary algorithm and the response surface methodology in Matlab. The outcome of the analysis shows the ability of the optimization framework to efficiently reduce the total computational load of the problem. Furthermore, the viscosity model assumed seems to be able to re solve the temporal pressure distribution and the advancing flow front accurately, which can not be said of the spatial pressure distribution. Hence, it is recommended to improve the CFD model proposed in order to better capture the true behaviour of the mould flow.
Starting Page	503
Ending Page	514
Page Count	12
File Format	PDF
ISSN	01915665
Journal	Mechanics of Composite Materials
Volume Number	45
Issue Number	5
e-ISSN	15738922
Language	English
Publisher	Springer US
Publisher Date	2009-11-24
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	thermo setting resin computational modeling compression moulding resin flow Structural Mechanics Mechanics Ceramics, Glass, Composites, Natural Methods Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mathematics Biomaterials Condensed Matter Physics Polymers and Plastics

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