1. Reference problem#

1.1. Geometry#

_images/10002AB8000033FD000011289DD03FC0B0EF123E.svg

Square plate:

side \(a=10.m\)

thickness \(t=0.05m\)

Point coordinates (in \(m\)):

Test 2

Test 4

Node

\(x\)

\(y\)

Node

\(x\)

\(y\)

1

4.0

4.0

1

4.0

4.0

2

2.25

2.25

3

4.75

2.5

4

7.25

2.75

5

7.5

4.75

6

7.75

7.25

7

5.25

7.25

8

2.25

7.25

9

2.5

4.75

1.2. Material properties#

\(E={2.10}^{\mathrm{11 }}\mathrm{Pa}\)

\(\nu =0.3\)

\(\rho =8000.\mathrm{kg}/{m}^{3}\)

1.3. Boundary conditions and loads#

Any \(P\) point such as \({x}_{p}=0\): (\(u=v=w=0\), \({\theta }_{y}=0\)).

1.4. Initial conditions#

Not applicable for modal analysis.