Redirection of Lamb Waves for Structural Health Monitoring

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="center" colspan="3">Improvement (experimental)</td></tr><tr><td align="center" colspan="3"><hr/></td></tr><tr><td align="left">Cut size (mm)</td><td align="center">1</td><td align="center">5</td></tr><tr><td align="left">Original: maximum scatter on top surface (nm)</td><td align="center">0.5 (noise)</td><td align="center">1.283</td></tr><tr><td align="left">Modified: maximum scatter on top surface (nm)</td><td align="center">0.88</td><td align="center">2.076</td></tr><tr><td align="left">Percentage improvement (%)</td><td align="center">76.0</td><td align="center">61.8</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Comparison of sensitivity to damage before and after modification.

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tab2

Table 2

Table 2: Redirection of Lamb Waves for Structural Health Monitoring 