会议专题

Micromechanical modeling and numerical simulation of ablation of 3D C/C composites

  Carbon-carbon (C/C) composites,in which a carbon matrix is reinforced by carbon fibers,are mainly used as thermo-structural protections in the aerospace engineering.The ablation of C/C composites at high-temperature causes mass loss,which is dominated by coupling effect of physical,chemical and mechanical factors.This paper classified the C/C ablation into three types according to the ablation mechanism: linear-rate reaction,parabolic-rate reaction and logarithmic-rate reaction.In this work,a micromechanical model of C/C composite with high-temperature heat conduction was established.A linear heat-transfer finite element analysis was carried out for revealing the damage morphology of C/C composites at an ultra high temperature.

C/C composites ablation surface recession thermal damage

Na Liu Qingsheng Yang

Department of Engineering Mechanics,Beijing University of Technology,Beijing,100124,China

国际会议

第13届国际断裂大会(ICF2013)

北京

英文

1-8

2013-06-16(万方平台首次上网日期,不代表论文的发表时间)