3. Modeling A#

This modeling tests triangular elements with VMIS_ISOT_LINE. The loading in the elastic zone is done in several steps of time in order to test the convergence of the IMPLEX method in a single iteration.

3.1. Characteristics of modeling#

_images/Object_1.png

Figure 3.1-a : Model A mesh

Modeling: D_ PLAN

Boundary conditions:

  • \(\mathrm{DX}=0.0\mathrm{mm}\) out of \(45\),

  • \(\mathrm{DY}=0.0\mathrm{mm}\) out of \(12\),

  • \(\mathrm{DY}=0.3\mathrm{mm}\) out of \(34\).

3.2. Characteristics of the mesh#

The number of knots is 297. The mesh consists of linear triangular elements:

  • SEG2: 92

  • TRIA3: 520

3.3. Tested sizes and results#

Figure 3.4-1 shows the force-displacement curves calculated with both methods. The values tested are differences in effort between the two methods at different times.

_images/100000000000034A00000253A3FC7B96BFFEA25F.png

Figure 3.3-a : Force-displacement curves

Instant (s)

Difference between the two curves ( \(\mathrm{kN}\) )

0.04

0

0.08

-5.65E-004

0.12

-5.00E-003

0.16

-8.95E-003

0.2

-2.94E-002

0.32

-1.26E-003

0.4

-5.63E-004

0.6

-1.60E-004

0.8

-9.43E-005

1

-8.69E-005

These values are tested in non-regression.

A least square criterion between the two curves is also used. Its value is: \(\mathrm{0,0824}\).