1. Reference problem#

1.1. Geometry#

We consider a frame consisting of 2 bars and 4 cables.

_images/10000000000002C6000002437306E658BDEED454.png

1.2. Material properties#

The materials are elastic, their properties are:

  • For the bars:

\(E=2.1E+11\) \(\alpha =0.0\) \(\rho =7800.0\)

  • For cables:

\(E=2.1E+11\) \(\alpha =1.0E-05\) \(\rho =7800.0\)

1.3. Mechanical characteristics#

The only characteristics that are needed are the sections of the various elements.

  • for the bars: \(A=1.0E-04\)

  • for cables: \(A=5.026E-05\)

1.4. Boundary conditions and loads#

On the go:

  • node \(\mathit{N3}\), all movements are blocked: \(\mathit{DX}=\mathit{DY}=\mathit{DZ}=0.0\)

  • node \(\mathit{N4}\), movements blocked following \(Y\) and \(Z\): \(\mathit{DY}=\mathit{DZ}=0.0\)

  • nodes \(\mathit{N1}\), \(\mathit{N2}\): movements blocked following \(Z\): \(\mathit{DZ}=0.0\)

The load is applied by tensioning the cables. A fictional temperature of -200°C is imposed on the cable elements in 20 loading steps.

1.5. Initial conditions#

Not applicable.