机械科学与技术2018，Vol.37Issue(5)：787-791,5.DOI:10.13433/j.cnki.1003-8728.2018.0519
C/C复合材料微观尺度烧蚀形貌演变研究
Simulation on Morphology Evolution of Micro Ablation for C/C Composites
摘要
Abstract
An micro ablation model for C/C composites was built coupling the level set method with the diffusion equation to simulate the morphology evolution of C/C composites under high temperature condition.Surface morphology evolution during ablation was calculated.The cylindrical convex morphology resulted from calculation showed a good agreement with the surface morphologies of C/C composites after ablation experiment,indicating the reliability of the built model.On this basis,the effect of the gas diffusion and inhomogeneous oxidation reaction on the morphology evolutions of fibers and matrix were analyzed to support further studies on micro ablation mechanism of C/C composites.关键词
C/C复合材料/烧蚀/形貌演变/水平集算法Key words
C/C composites/ablation/morphology evolution/level set method分类
航空航天引用本文复制引用
宋永善,齐乐华,张守阳,张佳平,李逸仙..C/C复合材料微观尺度烧蚀形貌演变研究[J].机械科学与技术,2018,37(5):787-791,5.基金项目
国家自然科学基金项目(51472203、51521061)与西北工业大学博士论文创新基金项目(CX201109)资助 （51472203、51521061）
