2. Modeling A#
2.1. Characteristics of modeling#
The concrete plate is modelled by two Q4GG elements, the first is supported by a quadrangular mesh and the second by a triangular mesh.
The cable is represented by 4 BARRE elements, supported by 4 mesh segments with 2 knots.
2.2. Loads#
The plate is subjected to a pressure that varies as a function of time:
Instant |
0.0 |
1.00E-005 |
2.00E-005 |
2.00E-004 |
1.00E-003 |
2.00E-003 |
2.00E-003 |
3.00E-003 |
3.00E-003 |
Pressure in \(\mathit{Pa}\) |
0.0 |
2.00E+003 |
2.00E+003 |
1.00E+005 |
1.00E+006 |
2.50E+006 |
7.00E+006 |
0.0 |
Initially, no tension is imposed in the cable.
2.3. Test steps#
After defining the model, the materials and the loads, the macro command DEFI_CABLE_BP is used to obtain the kinematic relationships between the plate and the cable.
The commands CALC_EUROPLEXUS and DYNA_NON_LINE are then launched with the same models, materials, loads,… etc. The movements resulting from the results of these two commands are compared to validate the correct consideration of the kinematic relationships between plate and cable in Europlexus.
The IMPR_RESU command is called to ensure that the results from Europlexus have been retrieved correctly.
2.4. Tested values#
The displacements obtained with CALC_EUROPLEXUS are compared with those obtained with DYNA_NON_LINE on the node in the middle of the cable, the latter serving as a reference.
Node |
Instant |
Component |
Reference Value |
NB001003 |
4.00E-004 |
|
2.8117346211E-05 |