11.12.2012 Views

Nondestructive testing of defects in adhesive joints

Nondestructive testing of defects in adhesive joints

Nondestructive testing of defects in adhesive joints

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Figure 7: Total Vector displacement distribution show<strong>in</strong>g over a section <strong>of</strong> structure modelled with 40% unidirectional glass<br />

fibre re<strong>in</strong>forced Epoxy. Max. displacement <strong>of</strong> 8 mm at the lower end <strong>of</strong> the component as shown by the circle.<br />

Figure 8: Total Vector displacement distribution over a section <strong>of</strong> structure modelled with 40% unidirectional carbon fibre<br />

re<strong>in</strong>forced Epoxy. Maximum displacement <strong>of</strong> 6.5 mm at the lower end <strong>of</strong> the component as shown by the circle.<br />

Property 30 % short glass fibre filled<br />

polycarbonate<br />

Young's Modulus<br />

Table 1: Mechanical Properties <strong>of</strong> the Composites [2,3]<br />

40% Unidirectional glass<br />

fibre re<strong>in</strong>forced Epoxy<br />

E1 (Pa) 8.62 E +09 1.24 E + 10 9.96 E + 09<br />

E2 (Pa) 8.62 E +09 4.48 E + 10 1.45 E + 11<br />

E3 (Pa) 8.62 E +09 1.24 E + 10 9.96 E + 09<br />

Poisson's Ratio<br />

μ12 0.31 0.28 0.25<br />

μ23 0.31 0.28 0.25<br />

μ13 0.31 0.037 0.041<br />

Shear Modulus<br />

G12 (Pa) -- 5.52 E + 09 5.86 E + 09<br />

G23 (Pa) -- 5.52 E + 09 5.86 E + 09<br />

G13 (Pa) -- 3.6E + 09 3.46 E + 09<br />

Density (kg / m 3 ) 1430 2080 1580<br />

40% Unidirectional carbon<br />

fibre re<strong>in</strong>forced Epoxy

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!