Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32468
The Sublimation Energy of Metal versus Temperature and Pressure and its Influence on Blow-off Impulse

Authors: Wenhui Tang, Daorong Wang, Xia Huang, Xianwen Ran


Based on the thermodynamic theory, the dependence of sublimation energy of metal on temperature and pressure is discussed, and the results indicate that the sublimation energy decreases linearly with the increase of temperature and pressure. Combined with this result, the blow-off impulse of aluminum induced by pulsed X-ray is simulated by smoothed particle hydrodynamics (SPH) method. The numerical results show that, while the change of sublimation energy with temperature and pressure is considered, the blow-off impulse of aluminum is larger than the case that the sublimation energy is assumed to be a constant.

Keywords: sublimation energy, blow-off impulse, pulsed X-ray, SPH method.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2793


[1] K. A. Gschneidner, "Physical Properties and Interrelationships of Metallic and Semimetallic Ellements (Book style with paper title and editor), " in Solid State Physics, vol. 3, New York & London: Academic Press, 1965, pp. 275- 426.
[2] W. Tang, and R. Zhang, Introduction to Theory and Computation of Equations of State (Book style). 2nd ed. Beijing: High Education Press, 2008.
[3] J. J. Monaghan, "SPH without a Tensile Instability (Periodical style)," Journal of Computational Physics, vol. 159, pp. 290-311, 2002.
[4] A. N. Parshikov and S. A. Medin, "Smoothed particle hydrodynamics using interparticle contact Algorithm (Periodical style)," Journal of Computational Physics, vol. 180, pp. 358-382, 2002.
[5] A. N. Parshikov, S. A. Medin, I. I. Loukashenko , et al, " Improvements in SPH method by means of interparticle contact algorithm and analysis of perforation tests at moderate projectile velocities (Periodical style)," Int. J. Impact Eneng, vol. 24, pp. 779-796, 2000.
[6] Z. Xu, and W. Tang, "An Improved Method with Riemann Solvers (Periodical style)," Chinese Journal of Computational Physics, vol. 23(6), pp. 713-716, Dec 2006.
[7] G. Zhao, R. Zhang, and W. Tang, "Blow-off Impulse Induced by Pulsed X-ray (Periodical style)," Explosion and Shock Waves, vol. 16(3), pp. 259-265, 1996.