This paper presents a novel dynamic experimental technique by modifying a Kolsky tension bar. Pulse shaping has been developed in Kolsky compression bars in order to subject the specimen to the desired dynamic testing conditions. Pulse shaping methods in Kolsky tension bars are not as mature as compression techniques. Developing an apparatus that can utilize the better-understood compression pulse shaping methods is then advantageous. A modified Kolsky tension bar where a hollow incident tube is used to carry the incident stress waves has been developed. The incident tube also acts as a gas gun barrel that houses the striker for impact. The striker impacts on the end of the incident tube through compression pulse shapers that are attached to the end cap. In order to accommodate free travel of the striker pressure-release slots are added to the tube. The effect of discontinuities on a stress pulse and impedance mismatches are discussed. Preliminary data will be shown for the elastic region of a 4140 steel sample.
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