13. K modeling#
Validation of the interface element HEXA20 with the cohesive law for fatigue CZM_FAT_MIX in open mode. The loading here is cyclical (see 5) in a jagged pattern. The odd times are the peaks and the even times correspond to the troughs.
13.1. Characteristics of modeling#
3D modeling for the elastic element.
3D modeling_ INTERFACE_S for the interface element
13.2. Characteristics of the mesh#
Number of knots: 32
The elastic element is a HEXA20.
The interface element is a degenerate HEXA20 (nodes combined).
13.3. Tested sizes and results#
The remark on control mentioned for modeling A also applies to this modeling.
The quantities tested and the results are identical to those obtained in \(\mathrm{2D}\) (see modeling J paragraph 12.3).
Size tested |
Reference |
Tolerance ( \(\text{\%}\) ) |
SIXXinst. 3 |
6.05826 |
0.10 |
SIGN (SIEF_ELGA) inst.9 |
1.45221 |
0.10 |
SIGN (DEPL) inst.9 |
1.45221 |
0.10 |
SITX (SIEF_ELGA) inst.7 |
0.0 |
0.10 |
V1 inst.3 |
2.04959E-02 |
0.10 |
V4 inst.3 |
1.94457E-01 |
0.10 |