5. D modeling#

In D modeling, we study only half of the 3D structure with at first the definition of the upper lip of the crack and then defining only the group of nodes at the bottom. We thus test the keyword SYME =” OUI “of the command DEFI_FOND_FISS in 3D.

5.1. Characteristics of the mesh#

The mesh is shown in the following figure:

_images/100000000000057F000002BFF460927C0677F87F.png

It is composed of 888 nodes for 1185 PENTA6 volume elements. The crack bottom is composed of 4 nodes located along the \(z\) axis in \(x\mathrm{=}0.5\) and \(y\mathrm{=}0.5\).

5.2. Tested sizes and results#

The vectors in the base are the same for each node in the background.

  • DEFI_FOND_FISS with SYME =” OUI “and LEVRE_SUP:

Quantities

Analytical value

VNORX

0.0

VNORY

-1.0

VNORZ

0.0

VDIRX

1.0

VDIRY

0.0

VDIRZ

0.0