Analysis of the Macroscopic Behaviour of PMI Foam

o accurately simulate the foam core in composite parts on a macroscopic scale the morphology, the characterisation, and the nonlinear behaviour of thefoam must be understood properly. Accounting for the heterogeneity and the mechanical properties of the foam core affects the dimensioning of the fina...

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Bibliographic Details
Published in:Key engineering materials 2019-06, Vol.809, p.285-290
Main Authors: Hinterhölzl, Roland, Peyrer, Peter, Thor, Michael, Schneiderbauer, Gernot, Wolfahrt, Markus, Nagler, Michaela, Sendner, Franz M.
Format: Article
Language:English
Subjects:
Computer simulation
Finite element method
Mathematical models
Mechanical properties
Morphology
Scanning electron microscopy
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Summary:o accurately simulate the foam core in composite parts on a macroscopic scale the morphology, the characterisation, and the nonlinear behaviour of thefoam must be understood properly. Accounting for the heterogeneity and the mechanical properties of the foam core affects the dimensioning of the final part.In the present study the microstructure of the foam samples were characterized using scanning electron microscopy. To determine the bulk material behavior and the strength limitations of the nonlinear foam, shear and compressions tests are performed. All numerical calculations were carried out on the macroscopic level.A basic challenge in the finite element modelling of hyperelastic materials by means of test data is the identification of material model coefficients which are appropriate to describe the behaviour of the considered foam.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.809.285