9. Summary of results

These tests make it possible to verify the correct functioning of the discrete elements with the DIS_ECRO_TRAC behavior when used with the DYNA_NON_LINE and DYNA_VIBRA commands.

The behavior is tested:

• in the \(x\) local direction of the discrete, with isotropic work hardening.

• in the y and z directions, tangential plane to the discrete, with isotropic and kinematic work hardening.

The STAT_NON_LINE command uses an implicit algorithm and calculates 1281 time steps, without adapting the step.

The command DYNA_VIBRA uses an explicit algorithm and adapts the step to solve the schema in time, this leads to calculating 42796 time steps.

Although the number of time steps when studying with DYNA_VIBRA is 33 times greater than when studying with STAT_NON_LINE, the DYNA_VIBRA command is 10 times faster in time CPU than the STAT_NON_LINE command.

Note: kinematic work hardening is not available in the local x-direction of the discrete (no request and need to date).