L7 composites - Materials Science and Engineering
L7 composites - Materials Science and Engineering
L7 composites - Materials Science and Engineering
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44<br />
Intro<br />
Composite<br />
Applns.<br />
Properties<br />
Voigt,<br />
Reuss,<br />
Hill<br />
Anistrpy.<br />
CTE<br />
Cellular<br />
Matls.<br />
Wood<br />
!<br />
Modulus of Cellular <strong>Materials</strong><br />
• Taking wood as an example, it<br />
is found that the moduli vary<br />
with (relative) density<br />
anisotropically.<br />
E axial " E cell<br />
#<br />
# cell<br />
E transverse " E cell<br />
$ # '<br />
& )<br />
% # cell (<br />
• Note the discrepancy between<br />
the equation <strong>and</strong> the slope in<br />
the plot. The theoretical<br />
prediction goes as (ρ/ρ cell ) 3 .<br />
2<br />
[Gibson: Cellular <strong>Materials</strong>]
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