This is regarding updating the cyclic test method only, and addresses the negatives that were received previously. With the cyclic test method having 2 options (tables) for performing the test, the Appendix provides explanation of how these tables differ by explaning how Vinson derived his equation, and that stress amplitude has been found to the the main driver of cyclic performance, thus allowing reader to understand the difference between the two tables. Additionally, the section on Reporting (section 10) will require the report to list which table was used, thus allowing for transparency.
Only items that are shown as tracked changes are being balloted.
Date Initiated: 10-23-2020
Technical Contact: Jay Parvez
Item: 001
Ballot: F17.20 (21-02)
Status: Will Reballot Item
Item: 006
Ballot: F17 (23-02)
Status: Will Reballot Item