摘要
采用代表体积元建模方法,建立了与实际高聚物粘结炸药(Polymer Bonded Explosive,PBX)细观结构高度相近、能反映炸药颗粒和微孔隙随机分布、可以任意调整填充率和孔隙率的有限元计算模型,并计算分析了孔隙率对PBX热导率的影响。结果表明,随着孔隙率增大,PBX的有效热导率呈指数减小。
A representative volume element （RVE） model was developed to investigate the thermal conductivity of three-phase pol- ymer bonded explosive （PBX） , and the fraction and distribution of the fillers and pores were taken into consideration. The influ- ence of porosity on the thermal conduction of PBX was analyzed. Results show that the thermal conduction of PBX decreases expo- nentially with the increase of porosity.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2013年第5期681-683,共3页
Chinese Journal of Energetic Materials
基金
国家自然科学基金(10832003)
化工材料研究所创新基金(626010947)
关键词
材料物理
高聚物粘结炸药
热导率
孔隙率
数值模拟
material physics
polymer bonded explosive
thermal conductivity
porosity
numerical simulation
