StressCheck Tutorial: Incorporating Contact Pressure Bleed in Resultant Extractions
Abstract: The term “bleeding” means that the tractions associated with the contact pressures may not be zero out of the contact region on their way to zero traction. This can affect the calculation of stress resultants, and therefore the load transfer feedback. Selection only the element faces inside the contact zone, or the contact zone itself, may not be sufficient to represent the stress resultant associated with the contact pressure.
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“In the case of the through crack configuration, the comparison of experimental and StressCheck® derived geometry factors showed a close correlation and were an improvement to solutions provided in AFGROW at the time. Based on the results of this research, StressCheck® pin-loaded lug geometry factors have since been incorporated into the AFGROW software.”
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