Characterization and assessment of composite materials via inverse finite element modeling

Carlos Llopis-Albert, Francisco Rubio, Francisco Valero

Abstract

Characterizing mechanical properties play a major role in several fields such as biomedical and manufacturing sectors. In this study, a stochastic inverse model is combined with a finite element (FE) approach to infer full-field mechanical properties from scarce experimental data. This is achieved by means of non-linear combinations of material property realizations, with a certain spatial structure, for constraining stochastic simulations to data within a non-multiGaussian framework. This approach can be applied to the design of highly heterogenous materials, the uncertainty assessment of unknown mechanical properties or to provide accurate medical diagnosis of hard and soft tissues. The developed methodology has been successfully applied to a complex case study.


Keywords

Inverse modeling; finite element; mechanical properties; heterogeneity characterization; biomedical; uncertainty assessment

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References

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