Plastic Indentation of Steel Cylinders With Circular Punches

[+] Author and Article Information
M. M. Sehgal, Shiro Kobayashi

University of California at Berkeley, Berkeley, Calif.

J. Eng. Ind 94(4), 1035-1043 (Nov 01, 1972) (9 pages) doi:10.1115/1.3428286 History: Received July 09, 1971; Online July 15, 2010


The detailed deformation characteristics involved in axisymmetric plastic indentation was examined. Circular punches with flat and hemispherical ends were indented into specimens prepared from SAE 1215 steels under as-received and annealed conditions. The load-displacement curves were recorded, and measurements were made of the geometrical changes of the workpieces and of the strain distributions for various punch-workpiece dimensions. Furthermore, the mode of deformation was examined by revealing the flow lines, and fracturing of the workpiece was also observed.

Copyright © 1972 by ASME
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