摘要
针对复合材料构件固化变形问题,分析了复合材料热压罐成型固化过程的多场耦合关系,考虑模具的作用,建立了柱面复合材料构件固化过程的有限元分析模型。基于此模型,研究了模具材料、模具厚度和模具形式对柱面复合材料构件固化变形的影响。结果表明:模具对柱面件固化变形的影响较大,模具材料与构件材料热膨胀系数(CTE)不匹配程度影响构件回弹角的大小;模具的厚度不同,导致构件的不同回弹角;采用阴模时,构件回弹角小于阳模的,且回弹方向相反。
The multi-field coupling relationship in curing process was analyzed according to the problem of process-induced deformation of the composite part prepared in autoclave. Finite element analysis model of curing process of the composite part was developed with mould effect considered. Based on the FEA model, effects of the material, thickness and form of the tool on the process-induced deformation of the part were studied. The results show that the mould has a great effect on the process-induced deformation. The CTE mismatch between the part and the mould affects spring-in angle of the part. The difference of thickness of the tool causes different spring-in angle. The deformation of the part prepared with female mould is less than that of male mould and the direction of deformation is opposite.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2012年第5期191-195,共5页
Acta Materiae Compositae Sinica
基金
"十一五"国家科技支撑计划项目(2006BAF01A43)
关键词
模具
复合材料
柱面构件
固化变形
有限元分析
mould
composite
cylindrical composite part
process-induced deformation
FEA
