5. C modeling#
5.1. Characteristics of modeling#
The cantilever beam is 0.35 m long and extends between X = 0.15 m and X = 0.5 m. It is modelled in 3D close to the embedment (between 0 and 0.22 m) and continues with a beam modeling. The surface connection is made to the node located in the 0.22 m situation by the 3D_ POU option of the LIAISON_ELEM keyword of AFFE_CHAR_MECA.
The structure is modelled by Timoshenko beam elements (POU_D_T) and linear hexahedral elements (HEXA8).
DYNA_VIBRA (transient calculation on a physical basis) calculates the dynamic response of the structure, due to a nodal force of 500 N applied at the end node of the 1D mesh (located at X = 0.5 m).
5.2. Characteristics of the mesh#
Number of stitches HEXA20 |
224 |
Number of stitches POU_D_T |
6 |
Table 5.2-1
5.3. Tested sizes and results#
The tables below give the numerical values tested in this test case. These are the minimum and maximum movements in Z of a 3D mesh node located at X = 0.5 m.
Identification |
Maximum instants |
Reference type |
Reference value |
Tolerance |
Minimal Z displacement |
20 s |
“AUTRE_ASTER” |
-0.00268654 |
|
Maximum Z displacement |
60 s |
“AUTRE_ASTER” |
+0.00268644 |
|
Table 5.3-1 : Summary of tested results