3. B modeling#

In B modeling, we study only half of a 2D structure with, at first, the definition of the upper lip of the crack and then defining only the bottom node. We thus test the keyword SYME =” OUI “of the command DEFI_FOND_FISS in 2D.

3.1. Characteristics of the mesh#

The mesh is shown in the following figure:

_images/100000000000057F000002BF9F7235CAF30FEBEE.png

It is composed of 222 knots for 395 TRIA3 elements. The crack bottom is composed of a single node located at coordinate \((0.5\mathrm{,0}.5)\).

3.2. Tested sizes and results#

  • DEFI_FOND_FISS with SYME =” OUI “and LEVRE_SUP:

Quantities

Analytical value

VNORX

0.0

VNORY

-1.0

VDIRX

1.0

VDIRY

0.0