Experimental Mechanics

, Volume 21, Issue 5, pp 177–185

Tensile testing of materials at high rates of strain

An experimental technique is developed for testing materials at strain rates up to 103 s−1 in tension using a modification of the split Hopkinson bar or Kolsky apparatus
  • Theodore Nicholas
Article

Abstract

A tension version of the split Hopkinson bar or Kolsky apparatus is developed for conducting tests in tension at high rates of strain up to 103 s−1. A number of aluminum, titanium, and steel alloys tested in tension show increasing degrees of rate sensitivity above 10 to 102 s−1. Tests on 6061-T651 and 7075-T6 aluminum show measurable strain-rate sensitivity in tension at the highest strain rates, although similar tests in compression in the literature show essentially no strain-rate sensitivity. Details of the apparatus and instrumentation and guidelines for its use are presented.

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Copyright information

© Society for Experimental Mechanics, Inc. 1981

Authors and Affiliations

  • Theodore Nicholas
    • 1
  1. 1.AFWAL Materials Laboratory (MLLN)Wright-Patterson AFB

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