|ANSYS Case Studies|
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The Workbench Mechanical GUI has many utilities and result quantities that are readily available to the user. However, at times, it may be necessary to evaluate results beyond what is currently accessible within the Mechanical GUI. One example of this situation would be: to determine the creep life through the use of the Larson-Miller relation.
A brief background:
Larson-Miller developed a relationship that relates rupture life to differences in temperature at a constant stress level. This relationship (or Larson-Miller Parameter, LMP) is commonly expressed as: LMP = Temperature * (log (time) + Constant). Material test data can then be developed which plots LMP versus the applied stress, or conversely, the time at which creep rupture would be expected based on an applied stress.
Plotting the result quantity "creep life" based on Larson-Miller would not be possible within the Mechanical GUI without the use of Design Assessment (DA). DA opens up result quantities and post-processing capabilities that would otherwise not be accessible. For the example shown, a "user defined" customization was used to graphically display the desired result quantities. See the link to the presentation for more details on how this was implemented within the Mechanical GUI.