Time integration accuracy in transient problems

Abaqus/Standard usually uses automatic time stepping schemes for the solution of transient problems. Factors influencing the increment size for transient problems include convergence aspects related to the degree of geometric, material, and contact nonlinearity (which also influence non-transient problems and are discussed in Convergence criteria for nonlinear problems) and the ability of the time integration operator to accurately resolve variations in the accelerations, velocities, and displacements over an increment. This section discusses tolerance parameters and adjustments to the time increment size related to the latter aspect.

The following topics are discussed:

Related Topics
About convergence and time integration criteria
Implicit dynamic analysis using direct integration
Uncoupled heat transfer analysis
Coupled pore fluid diffusion and stress analysis
In Other Guides
Rate-dependent plasticity: creep and swelling
*CONTROLS
Customizing general solution controls

ProductsAbaqus/StandardAbaqus/CAE