Description:

Behavior of basic elasto-plastic models.

What can be modified:

• model itself,
• type of loading - force or strain control,
• prescribed value (force, strain).

Comments:

• when changing the model, the simulation is reset,
• when changing the control, the simulation is paused (press ▶ button to continue),
• to preserve reasonable graphic representation, the extreme values of strain are artificially constrained. If such extreme strain value is reached, the strain does not change (regardless used control).

Notice:

• stress in the spring depends only on current strain (and vice versa),
• strain in the plastic element can change if and only if the stress in the plastic element equals the limit value,
• stress of combined models depends in general on strain and history of loading,
• in general, strain may be nonzero even if stress is zero,
• in general, stress may be nonzero even if strain is zero,