5. C modeling

5.1. Characteristics of modeling

Law of elasto-plastic behavior (” VMIS_ISOT_TRAC “)

Loading: Next bending moment (\(-Y\)) distributed across the face of the upper pipe.

\(M=-5216\mathit{kNm}\) where \(M\) is the moment on the \(Y\) axis.

5.2. Characteristics of the mesh

Number of knots: 40069

Number of meshes and types:

3D_SI: 8450 TETRA10 and 5580 HEXA20

3D: 240 PENTA15, 295 PYRAM13

5.3. Tested sizes and results

The value tested is the local energy release rate \({J}_{\text{fond}}\) on the node at the bottom of the crack. (option G from CALC_G). This value is tested for an integration ring defined by NB_COUCHE_INF =2 and NB_COUCHE_SUP =5.

Identification	Reference	Calculated value e	\(\text{\%}\) tolerance
\({J}_{\text{fond}}(\mathit{KJ}/m\mathrm{²})\)	9.8102	1.25410	30

Note

In the reference used [bib1], no comparison value is available for the law of behavior “ VMIS_ISOT_TRAC “. Indeed, this reference only uses a non-linear elastic law of behavior. Hence the significant difference observed for this modeling C.