Prediction of thermo-poro-elastic properties of porous composites using an expanded unmixing-mixing model

Title
Prediction of thermo-poro-elastic properties of porous composites using an expanded unmixing-mixing model
Authors
유재상최회길손명진신의섭
Keywords
Polymer-matrix composites (PMCs); Mechanical properties; Modeling
Issue Date
2018-03
Publisher
Composite structures
Citation
VOL 188-393
Abstract
This study proposes an expanded unmixing– mixing model to predict the material properties of porous composites. The poroelastic strain component that results from gas pressure within the pores was added in a thermo-elastic constitutive equation. The proposed model incorporates micro-state correction factors that represent micro-array effects from kinematic compatibilities in the boundaries of fibers and matrix. Finite element models were used to calculate the material properties of the porous matrix and composites. The results indicate that the material properties predicted by the proposed model are well correlated with those obtained from the finite element models. The results suggest that the proposed model adequately captures the change in the micro-state of porous composites due to pore generation. The model also illustrates the validity of the proposed model for composite thermo-poro-elasticity.
URI
http://pubs.kist.re.kr/handle/201004/67305
ISSN
0263-8223
Appears in Collections:
KIST Publication > Article
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