1. Reference problem

1.1. Loading

Initially, the load was modelled by a time history of a uniform load q1 = 10,000 N/m (as below).

Figure 1.1-1

In code-aster, this is therefore converted into nodal loads, shown below.

Figure 1.1-2

The magnitude of the nodal forces varies as a function of time as shown in Figure 1.1-1 with q1 = 1, t1 = 2.38e-2 (s) and t2 = 5.95e-2 (s).

1.2. Liaisons

• Embedding PT_5 (DX=DY=DZ= DRX = = DRY = DRZ =0)

• Embedding PT_32 (DX=DY=DZ= DRX = = DRY = DRZ =0)

1.3. Geometry

• Beam PT_5 to PT_12 and PT_23 to PT_32

Characteristics	Value	Unit
Inertia	19.43*106	mm4
Area	2 872	mm²

Table 1.3-1

• Beam PT_12 to PT_23

Characteristics	Value	Unit
Inertia	83.56*106	mm4
Area	5 356	mm²

Table 1.3-2

1.4. Material properties

• Beam PT_5 to PT_12 and PT_23 to PT_32

Characteristics	Value	Unit
Young’s module	200,000	MPa
Poisson’s ratio	0.30	[-]
Density	7,800	kg/m3

Table 1.4-1

• Beam PT_12 to PT_23

Characteristics	Value	Unit
Young’s module	200,000	MPa
Poisson’s ratio	0.30	[-]
Density	7,916	kg/m3

Table 1.4-2

1.5. Bibliographical references

1. VPCS: Guide to the validation of structural calculation software packages: « test SDLL03 -89 », SFM, AFNOR technique.