基于栅极用碳/碳复合材料铺层角度的优化  

ptimization of Lamination Angle Based on Carbon/Carbon Composite for Grid

作　　者：魏贺冉 罗锐祺 张承双[1] 闫联生[1] 孙建涛[1] Wei Heran;Luo Ruiqi;Zhang Chengshuang;Yan Liansheng;Sun Jiantao(Research Institute of Xi'an Aerospace Composites Materials,Xi'an 710025)

机构地区：[1]西安航天复合材料研究所,西安710025

出　　处：《航天制造技术》2023年第2期32-38,共7页Aerospace Manufacturing Technology

摘　　要：离子推力器是航天器的加速装置,其栅极用碳/碳复合材料部分采用铺层方法制备而成。本文以铺层法制备栅极材料为背景,为了观察不同铺层角度对碳/碳复合材料在同等静压力的冲击下发生的结构变化和形变程度影响,通过使用T700碳纤维/酚醛预浸带为原材料制备得到2mm厚的碳/碳复合材料单向层合板,对其进行力学性能测试,并得到相关力学性能参数,从而建立有限元模型对不同铺层角度复合材料进行仿真模拟分析。最后通过仿真结果分析,在同等静压力冲击下,[0/90]9铺层结构变形程度最大,且已经发生失效,材料被破坏,而[0/45/90/-45]5铺层结构变形程度最小,且材料结构完整性较好,在此实验条件下,是最稳定的铺层结构。Ion thruster is the acceleration device of spacecraft,and its grid is made of carbon/carbon composite material by layering method.This paper takes the grid material prepared by layering method as the background,in order to observe the influence of different layering angles on the structural changes and deformation degree of carbon/carbon composite material under the impact of the same static pressure.By using T700 carbon fiber/phenolic prepreg strip as raw material,a 2mm thick carbon/carbon composite unidirectional laminates were prepared.The mechanical properties were tested and the relevant mechanical properties parameters were obtained,and then the finite element model was established to simulate and analyze the composites with different layering angles.Finally,through the analysis of simulation results,under the same static pressure impact,[0/90]paving structure has the largest deformation degree and has already failed,and the material is destroyed,while[0/45/90/-45]s paving structure has the smallest deformation degree,and the material structure integrity is good.Under this experimental condition,it is the most stable paving structure.

关 键 词：离子推力器 碳/碳复合材料 T700/酚醛预浸带 层合板 仿真模拟 

分 类 号：TB332[一般工业技术—材料科学与工程]