*DYNAMIC TEMPERATURE-DISPLACEMENT

Dynamic coupled thermal-stress analysis using explicit integration.

This option is used to indicate that a dynamic coupled thermal-stress analysis is to be performed using explicit integration.

Related Topics
In Other Guides
Fully coupled thermal-stress analysis

ProductsAbaqus/ExplicitAbaqus/CAE

TypeHistory data

LevelStep

Abaqus/CAEStep module

Required parameters

EXPLICIT

Include this parameter to specify explicit time integration.

Optional, mutually exclusive parameters

DIRECT USER CONTROL

Include this parameter to specify that this step should use a fixed time increment that is specified by the user.

ELEMENT BY ELEMENT

Include this parameter to indicate that variable, automatic time incrementation using the element-by-element stable time increment estimates should be used. This method will generally require more increments and more computational time than the global time estimator.

FIXED TIME INCREMENTATION

Include this parameter to specify that this step should use a fixed time increment that will be determined by Abaqus/Explicit at the beginning of the step using the element-by-element time estimator.

Optional parameters

IMPROVED DT METHOD

Set IMPROVED DT METHOD=YES (default) to use the improved method to estimate the element stable time increment due to the mechanical response for three-dimensional continuum elements and elements with plane stress formulations (shell, membrane, and two-dimensional plane stress elements).

Set IMPROVED DT METHOD=NO to use the conservative method to estimate the element stable time increment due to the mechanical response for three-dimensional continuum elements and elements with plane stress formulations.

SCALE FACTOR

Set this parameter equal to the factor that is used to scale the time increment computed by Abaqus/Explicit. The default scaling factor is 1.0. This parameter can be used to scale the default global time estimate, and it can be used in conjunction with the ELEMENT BY ELEMENT and FIXED TIME INCREMENTATION parameters. It cannot be used in conjunction with the DIRECT USER CONTROL parameter.

Data line for automatic time incrementation (global or ELEMENT BY ELEMENT estimation)

First (and only) line

  1. Enter a blank field.

  2. T, time period of the step.

  3. Enter a blank field.

  4. Δ⁢tm⁢a⁢x, maximum time increment allowed. If this value is not specified, no upper limit is imposed.

Data line for fixed time incrementation using DIRECT USER CONTROL

First (and only) line

  1. Δ⁢t, time increment to be used throughout the step.

  2. T, time period of the step.

Data line for fixed time incrementation using FIXED TIME INCREMENTATION

First (and only) line

  1. Enter a blank field.

  2. T, time period of the step.