Helpful Hints and Tips: Application of Bolt-Preload via Multi-Body Contact
Abstract: Two options are available for representing pre-loading of 3D bolted joints:
- Shortening of the bolt shank length to interfere with the plate surface and induce tension on the bolt
- Applying a negative ΔT to the bolt shank elements via a thermal load
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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.”
Dr. Alten GrandtPurdue University