ISSN: 0090-3973
Page Count: 5

Dynamic Testing of Materials with the Rotating Disk Indirect Bar-Bar Tensile Impact Apparatus

Xia, Y
University,

Wang, Y
University,

(Received 30 July 2006; accepted 28 August 2006)

Abstract

An experimental method is proposed to investigate the tensile behavior of materials at high strain rates by using a developed split Hopkinson tension bar, rotating disk indirect bar-bar tensile impact apparatus. The mechanically-filtered input tensile pulse is generated by incorporating a prefixed metal bar connected between the impact block and the input bar. The pulse amplitude is controlled by the diameter of the prefixed metal bar. The pulse duration is determined by the length of the prefixed metal bar and the velocity of the impact hammer. Dynamic properties of metallic and nonmetallic materials are presented as examples by using this developed rotating disk indirect bar-bar tensile impact apparatus.

Keywords:
split Hopkinson bar, high strain rate, tensile test

Paper ID: JTE12436J
DOI: 10.1520/JTE12436J
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