2.2: Clamped Square Plate

Geometry and Boundary Conditions

Square plate clamped on all sides

../../../_images/benchmark2-2-setup.png

Material

Isotropic material with:

  • E = 2.4e+9 Pa

  • ν = 0.35

  • Density = 1020 kg/m³

Results

Reference results from [2]

Frequency (rads/sec) after normalization as stated in [2]

Mode

Reference

Intact Direct Solver [%Error]

Intact Iterative Solver [%Error]

Time (s) to solve with <3% error

1

1.51E+2

1.54E+02 [2.23%]

1.54E+02 [2.23%]

2,3

2.89E+2

2.94E+02 [1.79%]

2.94E+02 [1.79%]

4

4.05E+2

4.12E+02 [1.72%]

4.12E+02 [1.72%]

5

4.77E+2

4.86E+02 [1.79%]

4.86E+02 [1.79%]

Direct: 17.2 / Iterative: 14.9