ASTM WK72371

    Revision of E1820 - 20 Standard Test Method for Measurement of Fracture Toughness

    (What is a Work Item?)

    Active Standard: E1820 - 20

    Developed by Subcommittee: E08.07 | Committee E08 | Contact Staff Manager



    WK72371


    Keywords

    crack initiation; crack-tip opening displacement; CTOD; ductile fracture; elastic-plastic fracture toughness; fracture instability; J-integral; JIc; KJic; Jc; δc; plane-strain fracture toughness; resistance curve; stable crack growth;;

    Rationale

    There is an inconsistency in the permissible loading rate requirements within E1820 and with E1921. E1820, Annex A14 and E1921 specify a minimum time to Pm of 0.1 minutes while 8.4 in E1820 specifies a minimum time to Pm of 0.3 minutes. The proposed revision to E1820 will make the minimum time to Pm consistent between the two standards.

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    Work Item Status

    Date Initiated:
    03-24-2020

    Technical Contact:
    Richard Link

    Status:
    Draft Under Development