StressCheck Tutorial: Setting Up Solution Convergence Criteria
Abstract: Customizing a convergence criteria-controlled linear p-extension. Any number of convergence criteria (e.g. saved extraction settings within the Error tab, Min/Max tab, Points tab, or Resultant tab) may be specified and error tolerances provided for each convergence criteria setting. When the convergence criteria setting is selected in the SOLVE! tab, the linear p-extension will stop when the convergence criterion/criteria error tolerance(s) are met.
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“As the United States Air Force continues to extend the service life of their aircraft the Aircraft Structural Integrity Program (ASIP) has had to refine the methods it uses to analyze and predict fatigue crack growth. Through the use StressCheck®, coupled with AFGROW, we in A-10 ASIP have been able to more accurately model, predict and analyze critical aircraft structure for the A-10 and other types of structure for non-A-10 system managers. This also allows us within the A-10 to more accurately assess risk for decision makers, streamline aircraft inductions into scheduled maintenance and reduce cost for total life cycle management.”
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