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    ASTM E812-91(1997)

    Standard Test Method for Crack Strength of Slow-Bend Precracked Charpy Specimens of High-Strength Metallic Materials (Withdrawn 2005)

    Withdrawn Standard: ASTM E812-91(1997) | Developed by Subcommittee: E08.02

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    Withdrawn Rationale:

    This test method covers the determination of the crack strength c of a Charpy-type specimen (see Fig. 1) containing a fatigue crack tested in slow bending. The nominal cross-sectional dimensions of this specimen are identical to those given in Test Methods E 23 (Fig. 4A) for the standard Charpy test specimen.

    Formerly under the jurisdiction of Committee E08 on Fracture Testing, this test method was withdrawn in May 2005 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date

    1. Scope

    1.1 This test method covers the determination of the crack strength [sigma]c of a Charpy-type specimen (see Fig. 1) containing a fatigue crack tested in slow bending. The nominal cross-sectional dimensions of this specimen are identical to those given in Test Methods E23 (Fig. 4A) for the standard Charpy test specimen. The crack strength will be sensitive to changes in the plane-strain fracture toughness providing the strength of the specimen is determined primarily by crack propagation and not by plastic instability.

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    DOI: 10.1520/E0812-91R97

    Citation Format

    ASTM E812-91(1997), Standard Test Method for Crack Strength of Slow-Bend Precracked Charpy Specimens of High-Strength Metallic Materials (Withdrawn 2005), ASTM International, West Conshohocken, PA, 1997, www.astm.org

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