1. Reference problem#

1.1. Geometry#

Legend

Bend at 90°

0° fold

The plate is rectangular with dimensions \(L=127\mathit{mm};l=\mathrm{12,7}\mathit{mm}\). The thickness of the plate is \(1.01\mathit{mm}\).

embedding

Each layer behaves in an orthotropic elastic manner (defined via DEFI_COMPOSITE).

\({E}_{L}=134400E6;{E}_{T}=10340E6;{\mathrm{\nu }}_{LT}=\mathrm{0,33};{G}_{LT}=5100E6;{G}_{TN}=1999E6\)
\(\mathrm{\rho }=1477\)

The aim is to study the natural frequencies of the plate embedded on one of its sides (see figure).

Nil.