高速对称加载下改性酚醛碳纤维材料的物理特性

Physical Characteristics of One Carbon Phenolic Material Under High-Speed Symmetric Loading

利用一级轻气炮加载技术,对改性酚醛碳纤维材料进行了对称式抗冲击实验研究.探讨了改性酚醛碳纤维材料在对称高速撞击下的物理状态特性,构建了材料在高速冲击下的Hugoniot曲线和Griineisen状态方程,并计算了相应的Griineisen系数.实验结果表明,Griineisen系数与后自由面粒子速度呈负敏感效应的关系.

Free surface velocity of the carbon phenolic material is obtained based on the symmetrical loading technology of one-stage light gas gun.The high-pressure state properties of carbon phenolic material under high speed symmetrical loading are then discussed;at the same time,Hugoniot curve and Griineisen state equation for the carbon phenolic material are established.The experiment results show that Griineisen coefficients is negatively sensitive with improvement of the particle velocity.