4. B modeling#
4.1. Characteristics of modeling#
Behavior \(\mathrm{C2}\): linear kinematic work hardening, in \(\mathrm{3D}\). It is modelled in three ways:
or using behavior VMIS_CINE_LINE, by taking:
\(\text{D\_SIGM\_EPSI}=\mathrm{E.C}(T)/(E+C(T))\) with \(C(T)=(1000+\mathrm{2990.T})\)
or using behavior VMIS_ECMI_LINE, by taking:
\(\text{D\_SIGM\_EPSI}=\mathrm{E.C}(T)/(E+C(T))\) and the Prager constant \(\mathrm{PRAG}=2/3C(T)\)
or using behavior VMIS_CIN1_CHAB, keeping only linear kinematic work hardening: All you have to do is then take: \({R}_{0}={R}_{I}=\mathrm{SIGY}\), \(b=0\), \({C}_{I}=C(T)\), \({G}_{0}=0\)
Time discretization: 1 time step between \(t=\mathrm{0s}\) and \(t=\mathrm{1s}\) and 20 time steps between \(t=\mathrm{1s}\) and \(t=\mathrm{2s}\).
4.2. Characteristics of the mesh#
The mesh includes a HEXA8 mesh.
4.3. Tested sizes and results#
Behavior VMIS_CINE_LINE:
Instant ( \(s\) ) |
Plastic deformation by \(Y\) |
Reference |
Aster |
% difference |
% difference |
\(\mathrm{t1}=1.1\) |
|
0.01 |
0.01 |
||
2 |
|
8.E—4 |
8.E—4 |
0 |
Behavior VMIS_ECMI_LINE:
Instant ( \(s\) ) |
Plastic deformation by \(Y\) |
Reference |
Aster |
% difference |
% difference |
\(\mathrm{t1}=1.1\) |
|
0.01 |
0.01 |
||
2 |
|
8.E—4 |
8.E—4 |
0 |
Behavior VMIS_CIN1_CHAB:
Instant ( \(s\) ) |
Plastic deformation by \(Y\) |
Reference |
Aster |
% difference |
% difference |
\(\mathrm{t1}=1.1\) |
|
0.01 |
0.01 |
||
2 |
|
8.E—4 |
8.E—4 |
0 |