Impact resistancecharacteristics of C/SiC plate underhypervelocity load
YANG Yang1, 2XU Fei1Kou Jian-feng1 TANGZhong-bin1
1. School of Aeronautics, NorthwesternPolytechnical University, Xi’an, Shaanxi, China2. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China
Abstract：Impact resistanceof Thermal ProtectiveSystem is an important determinant for the safe serviceof Space Airplane in orbit.Firstly, based on the impact experiments, the debris cloud structure model of plain-woven C/SiC composite under impact load wasproposed and analysedqualitatively, in which the special axial columnar high energy zoneof C/SiC debris cloudwas emphasized.Secondly, based on the Autodyn orthotropic composite model,the material parameters were derived,whoserationality was verifiedby the comparison of numerical results with the experimental results.Finally, the residual velocity of projectile, the axial average velocity and the distributed angle of debris cloud were selected as the main characteristic parameters based on the debris cloud characteristics of C/SiC composite. Taken Al spherical projectile impact model as the object, the impact resistanceof C/SiCwas analysed and assessed for various conditions.
2014, Vol. 33 
