(Received 21 February 1986; accepted 22 September 1986)
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A tutorial exposition is given of methods for calculating the inelastic buckling stress of specimens tested in accordance with ASTM Standard E 9 on Compression Testing of Metallic Materials at Room Temperature. The recommended round specimen sizes will buckle inelastically for all non-brittle metals, but ASTM E 9 refers only to Euler elastic buckling. An inelastic buckling relation based upon the tangent modulus is given, and methods of calculating the inelastic buckling stress are demonstrated.
Mechanical EngineerMember of ASTM, U.S. Army Materials Technology Laboratory, Watertown, MA
Stock #: JTE10998J