Dynamic Characteristics of the Sinter-Forged Cu-Cr Alloys with the Variation of Chrome Content

This paper is concerned with the dynamic characteristics of sinter-forged Cu–Cr alloy for various strain-rates. The amount of the chrome content is varied from 10 %wt to 30 %wt in order to investigate the influence of the chrome content on the dynamic characteristics. The dynamic response at the corresponding level of strain-rate should be obtained with an adequate experimental technique and corresponding apparatus due to the inertia effect and the stress wave propagation. In this paper, the high speed tensile testing machine is utilized in order to identify the dynamic response of the Cu–Cr alloy at the intermediate strain-rates and the split Hopkinson pressure bar is used at the high strain-rates. Experimental results from both the quasi-static and the high strain-rates up to the 5000/s are interpolated with respect to the amount of the chrome content in order to construct the Johnson–Cook and the modified Johnson–Cook model as the constitutive relation for numerical simulation of the dynamic impact behavior of electrodes.
Publisher
Trans Tech Publications
Issue Date
2006-10-11
Description

Proc of 9th S2P2006, Busan, Korea, 2006.

Keywords

Sinter-forged Cu-Cr alloy; High speed material testing machine; Split Hopkinson pressure bar; Dynamic material properties

Citation

Solid State Phenomena Vols. 116-117 (2006) pp. 255-258

ISSN
1013-9826
URI
http://hdl.handle.net/10203/3284
Link
http://www.scientific.net/3-908451-26-4/255/
Appears in Collection
ME-Conference Papers(학술회의논문)
  • Hit : 477
  • Download : 3
  • Cited 0 times in thomson ci

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0