5. C modeling#

5.1. Characteristics of modeling#

_images/Object_18.svg

5.2. Characteristics of the mesh#

Number of knots: 83

Number of meshes and type: 20 TRIA7

5.3. Tested values#

_images/Object_19.svg

Identification

Moments

Reference

Aster

% difference

5

ETA_PILOTAGE

5

1.0

1.1143

11.43

15

ETA_PILOTAGE

15

1.0

1.1682

16.82

5.4. notes#

In this analysis, an imposed displacement type resolution technique (“DDL_IMPO”) is used to find the solution. This method provides for each imposed displacement value, a load multiplier coefficient (“ETA_PILOTAGE”). The value of the load imposed in “AFFE_CHAR_MECA” is equal to the limit pressure, therefore the reference value of the parameter “ETA_PILOTAGE” is equal to 1.

The calculations were stopped when the value of parameter ETA_PILOTAGE stabilized.

The reference being taken with respect to the beam solution with 50 elements, we observe an improvement in 3D shell results TRIA7 when the mesh is refined.