ASTM F1575 F1575M-21 测定钉子弯曲屈服力矩的标准试验方法.pdf

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:F1575/F1575M-21 INTERNATIONAL Standard Test Method for Determining Bending Yield Moment of Nails1 This standard is issued under the fixed designation F1575/F1575M:the number immediately following the designation indicates the year of original adoption or.in the case of revision.the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. 1.Scope* 3.Terminology 1.1 This test method covers procedures for determining the 3.1 Definitions of Terms Specific to This Standard: bending yield moment of nails when subjected to static 3.1.1 bending yield moment-the moment determined from loading.It is intended only for nails used in engineered the load-deformation curve that is intermediate between the connection applications in which a required connection capac- proportional limit load and maximum load for the nail.It is ity is specified by the designer. calculated by the intersection of the load-deformation curve 1.2 The values stated in either SI units or inch-pound units with a line represented by the initial tangent modulus offset are to be...