The derivation of material parameters from measurements of blow-off impulse and stress induced by electron beam

W.-H. Tang; H. Chen; X.-W. Ran

doi:doi:10.1051/dymat/2009047

All issues

Volume 1 (2009)

10.1051/dymat/2009047

Abstract

Issue		DYMAT 2009 Volume 1, 2009 DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		337 - 341
Section		Experimental Techniques
DOI		https://doi.org/10.1051/dymat/2009047
Published online		15 September 2009

DYMAT 2009 (2009) 337-341
DOI: 10.1051/dymat/2009047

The derivation of material parameters from measurements of blow-off impulse and stress induced by electron beam

W.-H. Tang, H. Chen and X.-W. Ran

Institute of Technical Physics, College of Science, National University of Defense Technology, Changsha, Hunan, 410073, P. R. China

Published online: 15 September 2009

Abstract
The Grüneisen parameter and the sublimation energy are two key parameters in the numerical simulation to study the dynamic properties of materials, but it is difficulty to measure them directly in experimental way. In this paper, a new method is proposed to determine both the Grüneisen parameter and the sublimation energy by comparing the experimental data of blow-off impulse and stress induced by electron beam with the numerical simulation results by the computer program DRAM. Then with the new method, the sublimation energy of mixed polyester is derived as about 1.5 kJ/g, and the value of Grüneisen parameter at standard state is about 0.12.