碳纤维树脂基复合材料壳体固化过程数值分析  

Numerical analysis of curing process of carbon fiber resin matrix composite shell

作　　者：潘浩东 李德华 尹艳华[1] 舒慧明[2] PAN Hao-dong;LI De-hua;YIN Yan-hua;SHU Hui-ming(Beijing Institute of Technology,Beijing 100081,China;Xi′an Institute of Modern Chemistry,Xi'an 710065,China)

机构地区：[1]北京理工大学,北京100081 [2]西安近代化学研究所,陕西西安710065

出　　处：《热固性树脂》2020年第6期27-32,37,共7页Thermosetting Resin

摘　　要：基于推进剂一体化包覆工艺,借助有限元软件Ansys对170环氧树脂/T700碳纤维复合材料壳体的固化过程进行了数值模拟,结合实际工艺条件,在不同固化工艺温度下对碳纤维树脂基复合材料壳体进行了热分析和力学分析。结果表明,固化工艺温度越低,固化时间越长,固化结束后复合材料壳体温度与环境温度相差越小。随着固化温度升高,壳体应力、应变和变形均增大,353.15 K下的应力、应变、形变量分别是303.15 K下的5.54倍,8.23倍,5.5倍。该数值模拟结果可为一体化包覆工艺提供一定参考。固化温度可在壳体及药柱承受强度范围内选择,以减小或消除固化变形带来的不利影响。Based on the propellant integrated cladding process,the numerical simulation of the curing process of 170 epoxy resin/T700 carbon fiber composite shell was carried out with the help of finite element software Ansys,and the thermal analysis and mechanical analysis of the carbon fiber resin matrix composite shell at different curing process temperatures were carried out in combination with the actual process conditions.The results showed that the lower the curing temperature,the longer the curing time,and the smaller the difference between the composite shell temperature and the ambient temperature after curing.As the curing temperature increasing,the shell stress,strain and deformation would increase.The stress,strain and deformation at 353.15 K were 5.54,8.23 and 5.5 times of those at 303.15 K,respectively.The numerical simulation results could provide a certain reference for the integrated cladding process.The curing temperature could be selected within the range of the shell and grain bearing strength to reduce or eliminate the adverse effects of curing deformation.

关 键 词：碳纤维复合材料 固化温度 壳体变形 数值模拟 

分 类 号：TB334[一般工业技术—材料科学与工程]