Constitutive response and damage in solid propellants

N. Aravas, F. Xu, P. Sofronis, A. Namazifard, R. Fiedler

研究成果: 会議への寄与タイプ学会誌査読

3 被引用数 (Scopus)

抄録

Solid propellants are composite materials with complex microstructure. In a generic form, the material consists of polymeric binder, ceramic oxidizer, and fuel particles (e.g. aluminum). Damage induced by severe stress and extreme temperatures is manifested in particle cracking, decohesion along particle/polymer interfaces, and void opening. In this work, the effect of damage due to particle dewetting on the material macroscopic response is investigated by accounting for large deformations. First, issues pertaining to the constitutive behavior of the individual components in the absence of damage are reviewed. Next, with the use of rigorous composite homogenization theory, a macroscopic constitutive law is devised that accounts for continuous void nucleation and growth upon straining. The standard relaxation and uniaxial tension tests are used to calibrate the model parameters. The model is implemented in our Center's finite element code Rocsolid to study damage evolution in the propellant grain of the Titan IV SRMU PQM-1 rocket motor.

本文言語英語
DOI
出版ステータス出版済み - 2005
外部発表はい
イベント41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit - Tucson, AZ, 米国
継続期間: 7月 10 20057月 13 2005

その他

その他41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
国/地域米国
CityTucson, AZ
Period7/10/057/13/05

!!!All Science Journal Classification (ASJC) codes

  • 航空宇宙工学
  • 制御およびシステム工学
  • 電子工学および電気工学

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