| Original Articles |
|
|
|
|
Measurement of Critical Impact Velocity of Copper in Tension |
| HU Jin-Wei;JIN Yang-Hui;CHEN Da-Nian;WU Shan-Xing;WANG Huan-Ran;MA Dong-Fang |
| Mechanics and Materials Science Research Center, Ningbo University, Ningbo 315211 |
|
| Cite this article: |
|
HU Jin-Wei, JIN Yang-Hui, CHEN Da-Nian et al 2008 Chin. Phys. Lett. 25 1049-1051 |
|
|
|
|
Abstract Critical impact velocity (CIV) of oxygen-free high-conductivity (OFHC) copper is experimentally measured with a novel facility in a gas gun system. The results are compared with the theoretical predictions using the typical constitutive relations, and the measured CIV value is much lower than the predictions. The difference of physical mechanisms in experiment and in theoretical calculation is discussed. It is suggested that the reduction of CIV in experiment would be related with the damage evolution in tensile copper that needs to be considered in the computation model.
|
| Keywords:
62.20.Fe
83.10.Gr
83.60.Uv
|
|
|
Received: 31 October 2007
Published: 27 February 2008
|
|
|
|
|
|
|
|
[1]Klepaczko J R 2005 {\it Int. J. Impact Engin. 32188
[2] Mann H C 1936 {\it Proc. ASTM. 36 85
[3] Clark Ds, Wood Ds 1950 {\it Proc. ASTM. 50 577
[4] Karman T 1942 {\it NDRC Report No A-29
[5] DuweZ P E and Clark D S 1947 {\it Proc. ASTM 47 502
[6] Taylor G I 1958 {\it Mechanics of Solids (Cambridge:Cambridge University Press) vol 1 p 456
[7] Johnson G R and Cook W H 1983 {\it Proc. Seventh Int.Symposium on Ballistics (The Hague, April 1983) p 541
[8] Zerilli F J and Armstrong R W 1987 {\it J. Appl. Phys. 61 1816 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
