Calculating the elastic constants of a highly porous cellular plastic with an oriented structure

Calculating the elastic constants of a highly porous cellular plastic with an oriented structure

A method for calculating the elastic constants of high-porosity cellular materials is proposed on the assumption that their oriented structure can be considered as a linear transform of some random structure. A simplified procedure to take into account the effect of gas pressure in closed-cell aniso...

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Veröffentlicht in:Mechanics of composite materials 2013-05, Vol.49 (2), p.121-128
Hauptverfasser: Lagzdins, A., Zilaucs, A., Beverte, I., Andersons, J.
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Anisotropy
Cellular
Cellular structure
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composites
Elastic constants
Glass
Materials Science
Mathematical models
Natural Materials
Plastic foam
Polyurethane resins
Porosity
Porous materials
Solid Mechanics
Transforms
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Zusammenfassung:A method for calculating the elastic constants of high-porosity cellular materials is proposed on the assumption that their oriented structure can be considered as a linear transform of some random structure. A simplified procedure to take into account the effect of gas pressure in closed-cell anisotropic solids on their elastic constants is also suggested. Calculations performed on the basis of a strut model elaborated earlier for highly porous materials are compared with experimental results for light cellular polyurethane plastics.
ISSN:0191-5665
1573-8922
DOI:10.1007/s11029-013-9328-4