The purpose of this work item is to make additional changes to E399 based on comments that were received during the revision process resulting in E399-20a but that were unrelated to the proposed changes or required significant additional work to formulate a well thought out proposal. The proposed changes include: (1) Expanding the allowed stress ratio for fatigue precracking in Annex E8; (2) Modify the requirements for compression preloading; (3) adding notes on warm prestressing effects; (4) modifying Note 8 and para. 5.1.6 on residual stress influence; and (5) modifying para. 8.3 to provide guidance on machine control modes.
Date Initiated: 03-03-2021
Technical Contact: Gary Bray