ASTM WK85711
Revision of E1820-23 Standard Test Method for Measurement of Fracture Toughness
Rationale
An inconsistency regarding the proportions of alternative specimens between sections 7.3, A1.1.2, A2.1.2, and A3.1.2 of E1820-23 has been identified. Specifically: • For SE(B) specimens, sections 7.3 and A1.1.2 mention ratios 1 ? W/B ? 4 for alternative specimens. • For C(T) and DC(T) specimens, section 7.3, A2.1.2 (compact tension), and A3.1.2 (disk-shaped compact tension) mention ratios 2 ? W/B ? 4 for alternative specimens. However, the last sentence in section 7.3 states “However, any thickness can be used as long as the qualification requirements are met.” It is proposed to remove this latter sentence, so that the ranges of W/B for alternative specimens can be considered mandatory. Revisions below are indicated by Track Changes.
Work Item Status
Date Initiated: 03-21-2023
Technical Contact: Enrico Lucon
Item: 002
Ballot: E08.07 (23-02)
Status: Will Reballot Item