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Geometrical modeling of fibrous materials under compression
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10.1063/1.2794476
/content/aip/journal/jap/102/7/10.1063/1.2794476
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/7/10.1063/1.2794476
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) A schematic drawing of smooth calender bonding. Drawing is not to scale.

Image of FIG. 2.
FIG. 2.

The flowchart of the procedure developed for generating uncompressed webs.

Image of FIG. 3.
FIG. 3.

(Color online) An example of the uncompressed webs generated by our algorithm.

Image of FIG. 4.
FIG. 4.

SVF of the square samples with the side lengths of 50, 250, and having different dimensionless basis weights.

Image of FIG. 5.
FIG. 5.

Influence of sample size on the web SVF and thickness at a fixed dimensionless basis weight.

Image of FIG. 6.
FIG. 6.

Influence of fiber orientation distribution on SVF of the fiberweb.

Image of FIG. 7.
FIG. 7.

Influence of the gap size on SVF.

Image of FIG. 8.
FIG. 8.

(Color online) Fiber bending at crossovers.

Image of FIG. 9.
FIG. 9.

(Color online) Fiber bending with constant bending step (a) and constant bending span (b) with .

Image of FIG. 10.
FIG. 10.

(Color online) A web compressed using constant bending step and constant bending span with (a) and (b).

Image of FIG. 11.
FIG. 11.

(Color online) SEM images of a spun bonded fabric after calendering: (a) top view and (b) side view.

Image of FIG. 12.
FIG. 12.

The flowcharts of the algorithms developed for reducing the web thickness with a constant (a), bending (b), and positioning of the cubes (c).

Image of FIG. 13.
FIG. 13.

(Color online) A fluffy structure compacted with different compaction ratios. From top to bottom: ( and ), ( and ), ( and ), and ( and ). It can be seen that by increasing the compaction ratio from 1 to 5, SVF increases from 4.5% to 25%.

Image of FIG. 14.
FIG. 14.

(Color online) Influence of the calendering temperature and pressure on the SVF of spun bonded fabrics.

Image of FIG. 15.
FIG. 15.

(Color online) A fiberweb compressed with different bending slopes varying from to .

Image of FIG. 16.
FIG. 16.

SVF profiles of the structures shown in Fig. 15. The local SVF is always higher at the top and bottom layers. The higher the bending slope, the greater is the difference between the fabrics’ SVF at the outer and inner layers.

Image of FIG. 17.
FIG. 17.

(Color online) SEM image of the cross section of a fabric after calendering.

Image of FIG. 18.
FIG. 18.

SVF profile through the thickness of the medium . Compaction is based on constant slope and constant span.

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/content/aip/journal/jap/102/7/10.1063/1.2794476
2007-10-12
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Geometrical modeling of fibrous materials under compression
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/7/10.1063/1.2794476
10.1063/1.2794476
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