超高速撞击作用下C/SiC薄板抗冲击特性研究

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (21) : 189-192.

论文

超高速撞击作用下C/SiC薄板抗冲击特性研究

杨扬1,2徐绯1 寇剑锋1汤忠斌1

作者信息 +

Impact resistancecharacteristics of C/SiC plate underhypervelocity load

YANG Yang1, 2XU Fei1Kou Jian-feng1 TANGZhong-bin1

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文章历史 +

摘要

空天飞行器热防护系统的抗冲击性能是其安全在轨运行的重要决定因素之一。首先，基于已获得的实验结果，对冲击载荷作用下平纹编织C/SiC复合材料薄板的碎片云团结构进行了定性建模和分析，指出了C/SiC碎片云中特殊的轴向柱状高能区。其次，基于Autodyn正交各向异性材料模型，推导材料参数并与实验工况对比，验证了模型及参数的合理性。最后，根据C/SiC碎片云团特点，选取弹丸剩余速度、碎片云轴向平均速度及分散角作为主要特征参数，并以球形Al弹丸薄板撞击模型为对象，对超高速撞击多种工况下C/SiC面板的抗冲击性能进行了规律分析和评估。

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.

导出引用

杨扬;徐绯寇剑锋汤忠斌. 超高速撞击作用下C/SiC薄板抗冲击特性研究[J]. 振动与冲击, 2014, 33(21): 189-192

YANG Yang;XU FeiKou Jian-feng TANGZhong-bin. Impact resistancecharacteristics of C/SiC plate underhypervelocity load[J]. Journal of Vibration and Shock, 2014, 33(21): 189-192