What question did this study set out to answer?

To develop and validate a fractal in-plane permeability model for fiber preforms that accounts for pore architecture and compression-induced porosity changes during composite molding.

April 1, 2002Polymer Composites

A fractal in‐plane permeability model for fabrics

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Authors

BYBoming YuWuhan University of Technology LLL. James LeeThe Ohio State University HCHanqiang CaoHuazhong University of Science and Technology

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Implication

Theoretical modeling study demonstrates accurate in-plane permeability prediction across compressed fabric preforms, indicating streamlined liquid composite molding.

Key Points

To develop and validate a fractal in-plane permeability model for fiber preforms that accounts for pore architecture and compression-induced porosity changes during composite molding.
Formulated a mathematical permeability model derived from pore area fractal dimensions and preform structural architecture.
Evaluated four glass fabric architectures: plain woven, 4-harness, bidirectional stitched, and continuous strand random mats under compression.
Validated model calculations by comparing results against a one-dimensional analytical model and experimental permeability measurements across relevant porosity ranges.
The fractal model successfully linked fabric in-plane permeability directly to compaction-driven porosity changes across all four preform architectures.
Model predictions demonstrated close agreement with both 1D analytical model calculations and experimental permeability measurements within typical engineering porosity ranges.

Cite This Study

Yu et al. (2002) studied this question.

synapsesocial.com/papers/6aa77abb34d06573242bd74b https://doi.org/10.1002/pc.10426

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Implication

Theoretical modeling study demonstrates accurate in-plane permeability prediction across compressed fabric preforms, indicating streamlined liquid composite molding.

A fractal in‐plane permeability model for fabrics

Discussion

Member takes

Implication

Key Points

Cite This Study

A fractal in‐plane permeability model for fabrics

Discussion

Member takes

Implication

Key Points

Cite This Study

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