Work Item
ASTM WK76374
Revision of E647-15e1 Standard Test Method for Measurement of Fatigue Crack Growth Rates
Rationale
This revision contains several modifications that have been discussed in several taskgroup meetings to improve the clarity of the standard, fix editorial mistakes, and to ensure the terminology is consistent with current practices. More extensive revisions to this standard were previously balloted and rejected. All content that was called into question has been excluded from these revisions. The revisions in this ballot include: 1)Addition of a new Figure 1 for added clarity 2)Modification of Figure 1 (Fig. 2 is this revision) to include information for the ESE(T) specimen 3)Modification of the K solution for the M(T) specimen (see Eq. A2.4) 4)Extensive changes to the Terminology section to be consistent with current ASTM convention 5)Inclusion of the Johnsons equation for the C(T) specimen (see Section A1.5.3.1.1 6)Addition of beveled holes for use with the C(T) and ESE(T) specimens (see Sections A1.2.7 and A.3.2.4)
Work Item Status
Date Initiated: 03-24-2021
Technical Contact: Stephen Smith