南京航空航天大学学报2018，Vol.50Issue(1)：24-29,6.DOI:10.16356/j.1005-2615.2018.01.004
模具材料对复合材料制件固化过程应变的影响分析
Influence of Mould Materials on Curing Process and Deformation of Composite Part
摘要
Abstract
During the curing process of composite in autoclave,the curing deformation of the workpiece is still an important factor affecting the quality of forming.By using fiber Bragg grating and thermocouple sensors,the temperature and strain of composite part are monitored on line during the autoclave curing process.T he influence law of resin matrix on strain in part is studied,and based on this,the influence of different mould materials on strain in composite curing process is analyzed.Experimental results show that resin and mould are the main influence factors of strain variation in composite materials curing process:On temperature rising and holding stage,the strain variation is caused by the resin flow,ther-mal expansion and curing reaction,w hile the mould contraction will contribute most to the strain varia-tion on the cooling stage.The change of stiffness,binding capacity with parts and thermal expansion co-efficients of different mould materials will affect the strain variation in different stages of composite cu-ring process.The curing strain curves of composite material parts under the curing process with differ-ent material moulds are obtained,the influence of different mould materials on strain in composite cu-ring process is analyzed,and the conclusions have instruction significance to large composite parts curing deformation for further analysis.关键词
复合材料/固化应变/模具材料/光纤光栅Key words
composite/curing strain/mould materials/fiber Bragg grating分类
通用工业技术引用本文复制引用
杨晓波,湛利华,蒋成标,张泳安,胡健..模具材料对复合材料制件固化过程应变的影响分析[J].南京航空航天大学学报,2018,50(1):24-29,6.基金项目
国家重点基础研究计划("九七三"计划)(2014CB046502)资助项目. （"九七三"计划）
