Constitutive Model of Solid Propellant with Mechanical Damage and Aging

Abstract:

Mechanical damage and aging are the main mechanisms of nonlinear characteristics of solid propellant.A comprehensive big strain visco-elastic constitutive model with damage mechanics and aging was established, by using the visco-elastic constitutive equations form expressed by the generalized variable, introducing damage variables, and taking the relaxation modules after aging to characterize the aging. The correctness of the model was verified through experiments. the parameters need by modeling are easy to be got, and converted into the finite element code to do the simulation computation, then the model is suitable for the engineering application.

• Periodical: Applied Mechanics and Materials (Volumes 198-199)
• Pages: 197-201
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.198-199.197
• Online since: September 2012
• Authors: Xiao Jun Zhang, Xin Long Chang, Shi Ying Zhang, Shun Xiang Chen, Jie Tang Zhu
• Keywords: Aging, Constitutive Model, Damage, Solid Propellant

References

[1] Schapery R A.: Polymer Engineering and Science, 1969, 9(4): 295-310.

[2] Swanson S R, Christensen L W: Journal of Spacecraft and Rockets, 1983, 20(6): 559- 566.

[3] Hongfu Qiang: Xi'an Jiao Tong University, Xi'an , (1998).

[4] Lai J, Bakker A: Computional Mechenics, 1996, 18(3): 182-191.

[5] Nordin L O, Varna J.: Composites Science and Technology, 2005, 65(10): 1609-1625.

[6] Sankaran G V, Jana M K.: AIAA 75-1343, (1975).

[7] Gerngross T, Xu Y, Pellegrino S.: Advances in Space Research, 2008, 42(10): 1683-1690.

DOI: 10.1016/j.asr.2007.03.093

[8] Jianping Zhou: National University of Defense Technology, Changsha, (1989).

[9] Jianhong Yang: The Second Artillery Force Engineering Institute, Xi'an, (1999).