Volume 1, 2009DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Page(s)||337 - 341|
|Published online||15 September 2009|
The derivation of material parameters from measurements of blow-off impulse and stress induced by electron beamW.-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
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.
© EDP Sciences 2009