DYMAT 2009
Volume 1, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 303 - 309
Section Experimental Techniques
Published online 15 September 2009
DYMAT 2009 (2009) 303-309
DOI: 10.1051/dymat/2009042

Dynamic compressive properties of nickel-based honeycomb sandwich and two-layered sandwich

Z.Q. Yang1, B.J. Pang1, J.Y. Shi2, L.W. Wang1 and R.Q. Chi1

1  Harbin Institute of Technology, 150080 Harbin, China
2  Northeastern University, 02115 Boston, USA

Published online: 15 September 2009

The behavior of nickel based super-alloy sandwich and two-layered sandwich at high strain rate 1000/s-6700/s were studied systematically using large caliber Split Hopkinson Pressure Bar (SHPB). Semiconductor strain gauges, PVDF stress gauges and pulse shaping technique were employed to improve the SHPB test. The results shows that both two kinds of honeycomb materials are strain rate insensitive under high strain rate, skin sheet damages at different forms with increasing of strain rate.

© EDP Sciences 2009